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A Story of Indexes and Full Table Scans: Finding All the Red Sweets Part 1
 
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"Why isn't Oracle using my index?!" is a common question people have when tuning SQL queries. In this episode Chris compares two methods for finding all the red candies from party bags he's prepared. He shows how these are like a full table scan and an index range scan. He goes on to compare the performance of these two approaches. He shows when a full table scan becomes more efficient than an index range scan and vice versa. ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 8185 The Magic of SQL
SQL Server training and interview question:-What is index and how does it make your search faster ?.
 
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For more such videos visit http://www.questpond.com See our other Step by Step video series below :- Learn Angular tutorial for beginners https://tinyurl.com/ycd9j895 Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn Design Pattern Step by Step in 8 hours:- https://goo.gl/eJdn0m Learn C# Step by Step in 100 hours :- https://goo.gl/FNlqn3 Learn Data structures & algorithm in 8 hours :-https://tinyurl.com/ybx29c5s Learn SQL Server Step by Step in 16 hours:- http://tinyurl.com/ja4zmwu Learn Javascript in 2 hours :- http://tinyurl.com/zkljbdl Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn TypeScript in 45 Minutes :- https://goo.gl/oRkawI Learn webpack in 50 minutes:- https://goo.gl/ab7VJi Learn Visual Studio code in 10 steps for beginners:- https://tinyurl.com/lwgv8r8 Learn Tableau step by step :- https://tinyurl.com/kh6ojyo Preparing for C# / .NET interviews start here http://www.youtube.com/watch?v=gaDn-sVLj8Q In this SQL Server training video we will understand what are indexes and how they make your search faster. We also run through the fundamentals of B-tree or balanced tree structure. Its also one of those favourite SQL Server interview questions which is asked in SQL Server interviews. We are also distributing a 100 page Ebook "Sql Server Interview Question and Answers". If you want this ebook please share this video in your facebook/twitter/linkedin account and email us on [email protected] with the shared link and we will email you the PDF.
Views: 232316 Questpond
mysql tutorial for beginners (6/8) : Indexes
 
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mysql tutorial for beginners (6/8) : Indexes As things stand, the table students works and can be searched without problem by MySQL—until it grows to more than a couple of hundred rows, At that point, database accesses will get slower and slower with every new row added, because MySQL has to search through every row whenever a query is issued. This is like searching through every book in a library whenever you need to look something up. Of course, you don’t have to search libraries that way, because they have either a card index system or, most likely, a database of their own. The way to achieve fast searches is to add an index, either when creating a table or at any time afterward. But the decision is not so simple. For example, there are different index types such as a regular INDEX, PRIMARY KEY, and FULLTEXT. Also, you must decide which columns require an index, a judgment that requires you to predict whether you will be searching any of the data in that column. And even when you’ve decided that, you still have the option of reducing index size by limiting the amount of each column to be indexed. If we imagine the searches that may be made on the students table, it becomes apparent that all of the columns may need to be searched. Anyway, go ahead and add an index to each of the columns, using the commands: ALTER TABLE students ADD INDEX(name(3)); An alternative to using ALTER TABLE to add an index is to use the CREATE INDEX command. They are equivalent, except that CREATE INDEX cannot be used for creating a PRIMARY KEY CREATE INDEX surname ON students (surname(5)); DESCRIBE students; These commands create indexes on both the name and surname columns, limiting name index to only the first 3 characters, and surname index to the first 5 characters. For instance, when MySQL indexes the following name: SAFAA It will actually store in the index only the first 3 characters: SAF This is done to minimize the size of the index, and to optimize database access speed. DESCRIBE command shows the key MUL for each column. This key means that multiple occurrences of a value may occur within that column, which is exactly what we want, as name or surname may appear many times. You don’t have to wait, until after creating a table to add indexes. In fact, doing so can be time-consuming, as adding an index to a large table can take a very long time. Therefore, let’s look at a command that creates the table students with indexes already in place. CREATE TABLE students ( Id_studnet SMALLINT UNSIGNED NOT NULL AUTO_INCREMENT, name VARCHAR(10) NOT NULL, surname VARCHAR(20) NOT NULL, email VARCHAR(30) NOT NULL, INDEX(name(3)), INDEX(surname(5)), ,PRIMARY KEY(id_studnet),UNIQUE(email)); Another important index, PK, its single unique key for each student to enable instant accessing of a row. The importance of having a key with a unique value for each row will come up when we start to combine data from different tables. You can add PK, while you create the table at the first time, or later by issuing the following command: ALTER TABLE students ADD PRIMARY KEY(id_student); The last important index, FULLTEXT index Unlike a regular index, MySQL’s FULLTEXT allows super-fast searches of entire columns of text. It stores every word in every data string in a special index that you can search using “natural language,” in a similar manner to using a search engine. It’s not strictly true that MySQL stores all the words in a FULLTEXT index, because it has a built-in list of more than 500 words that it chooses to ignore because they are so common that they aren’t very helpful for searching anyway. This list, called stopwords, includes the, as, is, of, and so on. The list helps MySQL run much more quickly when performing a FULLTEXT search and keeps database sizes down. FULLTEXT indexes can be created for CHAR, VARCHAR, and TEXT columns only. A FULLTEXT index definition can be given in the CREATE TABLE statement when a table is created, or added later using ALTER TABLE (or CREATE INDEX). Adding a FULLTEXT index to the table students for the columns name and surname ALTER TABLE classics ADD FULLTEXT(name,surname); this index is in addition to the ones already created and does not affect them You can now perform FULLTEXT searches across this pair of columns. If you find that MySQL is running slower than you think it should be when accessing your database, the problem is usually related to your indexes. Either you don’t have an index where you need one, or the indexes are not optimally designed. Tweaking a table’s indexes will often solve such a problem. In the next tutorial, we will learn about, using FOREIGN KEY Constraints and how to join tables together. Subscribe for more: ---------------------------------------------------------------------------- https://www.youtube.com/subscription_center?add_user=saf3al2a SWE.Safaa Al-Hayali - saf3al2a
Views: 28366 Safaa Al-Hayali
How to verify the Oracle Database Name - Database Tutorial 51 - Oracle DBA Tutorial
 
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Video 51 How to verify the Oracle Database Name - Oracle DBA Tutorial This video explains about, 'how to verify the Oracle Database Name that we are connected to'. After connecting to a database, it is very important that we need to verify that we are connected to the right database. This can be done by: select * from v$database; select * from v$instance;
Views: 6718 Sam Dhanasekaran
Create User and Connecting With SQLPLUS in Oracle SQL Developer Using Command Prompt
 
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Facebook : https://www.facebook.com/ala.hassine.10 Email : [email protected] Page Facebook Système Embarqué : https://www.facebook.com/NewEmbeddedSystem ============================= ============================= The commands used in the video : sqlplus / as sysdba CREATE USER Name IDENTIFIED BY password; GRANT ALL PRIVILEGES TO Name; GRANT EXECUTE ANY PROCEDURE TO Name; GRANT UNLIMITED TABLESPACE TO Name; GRANT CREATE SESSION TO Name; CREATE ROLE role_Name; GRANT CREATE ANY TABLE, ALTER ANY TABLE, DROP ANY TABLE TO role_Name; GRANT SELECT ANY TABLE, INSERT ANY TABLE, UPDATE ANY TABLE, DELETE ANY TABLE TO role_Name; GRANT CREATE ANY TRIGGER, ALTER ANY TRIGGER, DROP ANY TRIGGER TO role_Name; GRANT CREATE ANY SEQUENCE, ALTER ANY SEQUENCE, DROP ANY SEQUENCE TO role_Name; GRANT SELECT ANY SEQUENCE TO role_Name; GRANT CREATE ANY INDEX, ALTER ANY INDEX, DROP ANY INDEX TO role_Name; GRANT CREATE ANY PROCEDURE TO role_Name; GRANT role_Name TO Name; exit sqlplus / as sysdba exit sqlplus Name/Password ============================= ============================= CREATE TABLE employee ( empno number PRIMARY KEY, empname varchar2(70) UNIQUE, address varchar2(70), salary number NOT NULL ) ============================= insert into employee values(1,'Ala','Nabeul',1500); insert into employee values(2,'Ahmed','Tunis',2000); insert into employee values(3,'Ritej','Sfax',1700); insert into employee values(4,'Majdi','Sousse',3000); insert into employee values(5,'Raed','Bizert',2500); insert into employee values(6,'Yasser','Mahdia',1900); ============================= select * from employee;
Views: 50 Système EmbarQué
Install and configure Sql Developer on Windows | Oracle Tutorial
 
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How to Install SQL Developer on Windows 1) Download for the below link http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html 2) Make sure you have Java Development Kit installed with latest version. http://www.oracle.com/technetwork/java/javase/downloads/index.html 3) Install SQL developer as rpm -ihv sqldeveloper-xxx.noarch.rpm (replace xxx with exact version of your SQL developer) Run SQL developer on linux command prompt as $ sqldeveloper 4) Create a new connection to connect to user Technology Lair : www.technologylair.org Subscribe : http://www.youtube.com/subscription_center?add_user=technologylair For More Videos : http://www.youtube.com/user/technologylair/videos For Video Tutorials :http://www.youtube.com/playlist?list=PLC71CFFF7A916DCAA For Android : http://www.youtube.com/playlist?list=PLUXK1VpPWQKHI1l-NvM5jvNKKnmNy9eHp For Linux : https://www.youtube.com/playlist?list=PLUXK1VpPWQKHV2xOmjQgUNj3Hrmcslj-H Kalam e Iqbal : http://www.youtube.com/playlist?list=PLF057785BD260F061 Like us on Facebook : https://www.facebook.com/technologylair Tweet us : http://twitter.com/technologylair Follow us : https://plus.google.com/u/0/118196883367288585963/posts Pin us : http://www.pinterest.com/technologylair/
Views: 337544 TechLair
Get Fuzzy with APEX and Oracle Text
 
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Ever had a requirement to add fuzzy search to your APEX application ...? And did you know that Oracle Database and APEX provide everything you need? This Application Express Office Hours session shows how to provide error-tolerant searching to your end users using Application Express and the Oracle TEXT database feature. Oracle TEXT allows to build just one Index for all your data and it provides linguistic and fuzzy search capabilities. The APEX Interactive Grid component allows to declaratively integrate such an index - however, other APEX components can leverage Oracle TEXT as well. The session shows how to build the Oracle Text index and how to use it with various APEX components. Tips and Tricks for practical usage will wrap the session up. Slides: https://www.slideshare.net/CarstenCzarski/find-anything-in-your-apex-app-fuzzy-search-with-oracle-text Chat: http://bit.ly/apex_office_hours_chat__20190124 Video Highlights: [2:50] Introduction [8:30] Oracle Text [11:25] APEX Interactive Grid Demo [15:10] Oracle Text Fundamentals [24:00] Demo - Building a new Text Index [42:40] Summary [44:30] Questions and Answers https://apex.oracle.com
Views: 739 Oracle Developers
SQL tutorial 38: How to create user using SQL Developer in Oracle database
 
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How to create new user accounts using SQL Developer in oracle database. In This tutorial you will learn how to create a new user account. How to setup a database connection with SyS user. How to grant privileges to the user ----_Links_--- Blog :http://bit.ly/create_user_account Video Tut 4: http://youtu.be/wSqoXRlXDUU How to create database: http://youtu.be/enFFezPYhCg Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 Amazon Wishlist: http://bit.ly/wishlist-amazon Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com
Views: 65050 Manish Sharma
Why Is My Query Slow? More Reasons Storing Dates as Numbers Is Bad
 
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Storing dates as numbers can cause unexpected problems. In this video Chris looks at one possible issue: inconsistent query performance. He then shows methods you can use to improve performance, including function-based indexes and histograms. ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 7244 The Magic of SQL
Oracle 12c Database New Features - Pluggable Database - Video 1
 
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Oracle 12c Database New Features - Pluggable Database - Video 1 1. Pluggable Database * Oracle 12c introduces a new feature called 'Pluggable Database'. Here Oracle Metadata and user data are totally separated into two sections. One is Container DB (or CDB) which will hold Oracle Metadata. The other is Pluggable DB (or PDB) which will hold user data. How does a Pluggable Database work? In the regular database, Oracle's metadata and user's application data are integrated. For beginners, Oracle Metadata is the data that is present when you install a new Oracle Database (without any sample schemas). Even though it can be called as an empty database, it still has data provided by Oracle. This data is needed by the database to function. For example, the objects owned by SYS, SYSTEM are mostly metadata. Then user data is entered into that database. They will go under multiple user schemas. Now the database is being used by the users. Now a situation arises so that we need to create another database on the same server. Why? Let us say that you need to provide data to two clients. And you don't want one client to other's data. And your data is contained in an extensive set of application schemas. In this case, making a copy of those applications schemas into a different set of names and making them reside in the same database is very difficult. So, you provide two separate databases. This also ensures that there is no security violation. So, we install another new database, which comes with Oracle Metadata. Then we load the user data. In this method, which is currently being used (Year 2013), there will be a need for more memory for both the database instances. There will be two SGAs, two sets of smon, pmon and other background processes running. Then if we need to copy one database to another, we need to rely on extensive procedures which includes exporting the data from the source database first, then removing the data at the target and then finally loading the data in there. After that, we need to take care of the user security and object privileges etc. So, if you want to provide data for multiple tenants, that is multiple clients, then with the current set of features (till Oracle 11g), we have to create multiple databases. That is, one database for one client. In otherwords, there is no multi-tenancy. Multi-Tenancy is becoming an important requirement in cloud infrastructure, these days. You would like to have the ability of providing data to multiple clients from the same database system with full confidence in security. This can be achieved in Pluggable Database. In a Pluggable Database, Oracle basically separates its metadata entirely from the user data. Metadata is stored in a section called Container DB. Then the user data are stored in Pluggable DBs. It also stores user metadata in the Pluggable DB. By the way, what is user metadata? For example, earlier, the list of user accounts that exist in a database is tightly inegrated with Oracle Metadata. Now, with the separation of Container DB and Pluggable DB, the user accounts must exist in the Pluggable DB. So, the Pluggable DB not only contains user data, but also some user metadata. So, what are the benefits? * Multi-Tenancy - We can bring in two Pluggable DBs under one Container DB. Both will be totally segregated, but yet controlled by one instance. This is an important feature for SaaS (Software as a Service) platforms, Cloud, On-Demand and Vendor Managed Application solutions. * Easy cloning/copying. Now the cloning and copying the databases across servers would be much easier. Just clone a Pluggable DB and plug-it-in in a different server. * Very easy upgrades and patching.
Views: 80716 Sam Dhanasekaran
Learn Oracle SQL Developer in 10 minutes - Data Dictionary - DDL - Part 1/2
 
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Refer Complete Tutorial : http://haneefputtur.com/create-manage-oracle-database-using-oracle-sql-developer-gui.html Create Oracle Database Tables Using GUI SQL developer Tools Tasks: • Create Orale tables using Oracle SQL Developer Creating Oracle Tables . 1. Oracle database required: DNS Name : xxxxxxxxx User Name: haneef Password : xxxxxxxxxxxxxxx Service Name : Haneef 2. Software Required : Oracle SQL Developer ( this requires JDK ) Link to Download : http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html Create two tables. 1. Employee 2. Department Employee Table : • Employee ID ( Primary key) • Employee Name • Employee Department • Employee Salary Department Table: • Department ID (Primary key) • Department Name • Department Head Create Foreign Key For Employee Department to get ID from Department Table. Create DDL and Execute them.
Views: 27456 Mahammad Haneef
Get Table Names with Column Names and Data Types in SQL Server - SQL Server Tutorial
 
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In this video ,we will generate the script that will return us all the table names with column names and data type of those columns. We often need this information. Let's say we are going to prepare mapping document for load the data from Source Database to Destination database. We can get the list of all tables with column names and data types from Source Database and Destination Database and then paste in Excel and map the required input columns to output columns for ETL Process. Blog link with scripts used in video http://sqlage.blogspot.com/2015/02/get-all-tables-with-column-names-and.html
Views: 47972 TechBrothersIT
how to install Oracle 12c and setting up new user accounts , a perfect solution
 
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you can download oracle 12c from the website here.. http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
Views: 102832 how to get installed?
How to Install Oracle Database 11g on Windows 10 By Manish Sharma
 
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Detail tutorial on How to install Oracle database 11g enterprise edition on Windows 10 Professional 64 bit. Full installation under 9 mins. You can follow the steps for installing Oracle 11g on Windows 10 32 bit home or any other version. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Previous Tutorial ► Download Link http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html ►Create Database using DBCA https://youtu.be/enFFezPYhCg ►How To Unlock User using ALTER USER https://youtu.be/sMqq9MSVmQo ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/TheRebellionRider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 342771 Manish Sharma
Get Started with Oracle Management Cloud
 
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Watch this video for information on how to get started with Oracle Management Cloud. This includes information on how to: 1. Create an Oracle Management Cloud instance 2. Add users and assign Oracle Management Cloud user roles 3. Access Oracle Management Cloud console from My Services 4. Enable Oracle Management Cloud license editions For more information, see https://docs.oracle.com/en/cloud/paas/management-cloud/omcgs/index.html. ================================= To improve the video quality, click the gear icon and set the Quality to 1080p/720p HD. For more information, see http://www.oracle.com/goto/oll and http://docs.oracle.com Copyright © 2018 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Indexes in sql server   Part 35
 
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In this video we will learn about What are indexes Why do we use indexes Advantages of indexes These concepts are applicable to sql server 2000, 2005 and 2008 Text version of the video http://csharp-video-tutorials.blogspot.com/2012/09/indexes-in-sql-server-part-35.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-35-indexes.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 387424 kudvenkat
Learn about the Oracle NoSQL Database and its Features
 
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Oracle NoSQL Database is an advanced key-value database that is designed to be highly scalable with predictable low latency. In this video, learn how to download and install Oracle NoSQL Database, and watch how Oracle NoSQL Database can be used in solving challenges in a Pizza delivery business. Learn more about Oracle NoSQL Database from Oracle Help Center: http://docs.oracle.com/cd/NOSQL/html/index.html Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
File Systems 1: File Indexes with B-Trees
 
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One way to speed up file access is to use an index, and a common way to create such an index is by using a B-Tree, a particular type of self balancing tree. The structure of B-Trees is introduced, along with examples of how insertions modify the tree.
Views: 14832 Jacob Schrum
Easy Way to Understand and Work with SQL Indexes
 
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In this guide, we're going to discuss indexes in sequel. I thought quite a bit about the best way to understand indexes because if you've never worked with them before they may seem a little bit foreign. I think this is one of the better ways of thinking about it. Follow me: Twitter: https://twitter.com/jordanhudgens Instagram: https://www.instagram.com/jordanhudgens/ GitHub: http://github.com/jordanhudgens You could imagine that each one of these items is actually a record in the database. I wanted to kind of strip out the entire idea of showing my sequel workbench and all of the things around it because those things were all distracting when it came to understanding just the basic high-level concept of what an index does will go into what an index actually is right after this. Let's imagine that we have a ton of records so you can see that we have record after record after record. And let's imagine a scenario where we need to find a specific record. Well, if we do not have an index then what we're essentially going to be doing or what's going to be happening behind the scenes is my sequels going to say "okay, is it this post? No. Is it this one? No. This one? No." It's going to keep on going down to check every single post and then who knows how long it's going to be until you find the one you want. If you had a scenario where you had five million posts and records in your database you're going to be sifting through a lot of content. And so this is going to be really annoying. This is the one line I put in there it's called "what I am really looking for." If I were to search through my database for "what I am really looking for" this could be incredibly slow when it comes to finding it. That's what I wanted you to think about was why indexes are even necessary. And it comes down to the fact that an index will allow us to speed up this process because right now we have to look line by line. But what happens if I say I want to see numbers here? So each one of these now has a number by it Which means it has a reference point you could say it has an index. Now if I go all the way down I can see that this line of code or this post I was looking for is on line 317. What this means for me is when I'm searching for these values I don't need to think of just trying to find where is this one record? I can actually just skip down to the exact spot that I want this makes it much more efficient to be able to find what I'm looking for. I don't have to go line by line because the system essentially already has a mechanism for being able to search through it. Now the true mechanism behind this gets a little more into some more complex algorithms and data structures and I'll show where you can find what that is. But what it allows the system to do is instead of just trying to go line by line and find it in a linear fashion. It can actually go and skip ahead and ignore a huge chunk of the records that are not applicable just by having this index so you could think of an index essentially as a reference point. In sequel workbench let's go and see our indexes because believe it or not you've actually been using indexes this entire course and many of the indexes are actually created by default. Especially when you use tools like my sequel workbench. If I click on addresses and then click on the little inspect icon this is going to bring up all of the different data points that we've seen before. But you may notice here we have this indexes tab. If I click on this it's going to show all of the columns in the table. But it's also going to show all of the indexes that we have in the table. So you can see that by default whenever you create a table and you define a primary key that is going to create an index and right here we have an index of primary key and we know that it is unique and so right here you can see that he even has a name of unique. Full written guide, screenshots, and code here: https://www.edutechional.com/2018/08/13/sql-tutorial-improving-query-performance-with-sql-indexes/
Views: 319 edutechional
How to fix Notice: Undefined index in PHP form action?
 
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Subscribe to my youtube channel [ HowPortal ], you can get log of cool how to videos. thanks
Views: 91953 HowPortal
Oracle Exadata SmartScan
 
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Are you a believer? You will be. This three minute video explains how Oracle Exadata Smart Scan offloads query processing to the storage layer to deliver extreme performance for data warehousing applications.
Views: 15060 Oracle Video
Copying Data With Column Headers in Oracle SQL Developer
 
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By default, when copying data grid data to the Clipboard in Oracle SQL Developer, column headers are omitted. Here's a quick video on how to get data with the column headers and JUST the column headers for a grid to the clipboard. Copyright © 2013 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
ORACLE Technical Interview Question And Answers
 
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ORACLE Technical Interview Question And Answers @ http://www.blog.latestoffcampus.com/2013/11/oracle-technical-interview-question.html ---------------------------------------------------------------------------------------------------------- 1.What are the components of physical database structure of Oracle database? Ans.Oracle database is comprised of three types of files. One or more datafiles, two are more redo log files, and one or more control files. 2.What are the components of logical database structure of Oracle database? Ans.There are tablespaces and database's schema objects 3.How do you switch from an init.ora file to a spfile? Ans.Issue the create spfile from pfile command. 4.What is a CO-RELATED SUBQUERY Ans.CO-RELATED SUBQUERY is one that has a correlation name as table or view designator in the FROM clause of the outer query and the same correlation name as a qualifier of a search condition in the WHERE clause of the subquery. 5.What is SYSTEM tablespace and when is it created? Ans.Every Oracle database contains a tablespace named SYSTEM, which is automatically created when the database is created. The SYSTEM tablespace always contains the data dictionary tables for the entire database. 6.What are various joins used while writing SUBQUERIES Ans.Self join-Its a join foreign key of a table references the same table. Outer Join-Its a join condition used where One can query all the rows of one of the tables in the join condition even though they don't satisfy the join condition. Equi-join-Its a join condition that retrieves rows from one or more tables in which one or more columns in one table are equal to one or more columns in the second table 7.What is schema? Ans.A schema is collection of database objects of a user. 8.Give the reasoning behind using an index. Ans.Faster access to data blocks in a table. 9.What type of index should you use on a fact table? Ans.A Bitmap index. 10.What are various constraints used in SQL Ans NULL NOT NULL CHECK DEFAULT 11.What are different Oracle database objects Ans. TABLES VIEWS INDEXES SYNONYMS SEQUENCES TABLESPACES etc 12.What command would you use to encrypt a PL/SQL application? Ans.WRAP 13.What is difference between Rename and Alias Ans.Rename is a permanent name given to a table or column whereas Alias is a temporary name given to a table or column which do not exist once the SQL statement is executed. 14.What is a view Ans.A view is stored procedure based on one or more tables, its a virtual table 15.What are various privileges that a user can grant to another user Ans. SELECT CONNECT
Views: 952 Latestoffcampus
Real World Performance - Intro
 
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Andrew Holdsworth talks about Real World Performance, and the similarities in Sailboat racing and sailing. The Real-World Performance (RWP) Group is part of the Oracle Database Development organization. Engineers in the RWP group focus on extracting the maximum performance from the Oracle Database and hardware in the real-world. We do this by identifying inefficiencies in current systems and applying modern database design and tuning techniques. For more RWP go here - http://www.oracle.com/goto/oll/rwp For a longer cut of Andrew sailing on the Bay go here - https://vimeo.com/159159732 ================================= For more information, see http://www.oracle.com/goto/oll Copyright © 2016 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
General user architecture of a database - Database Tutorial 60 - Oracle DBA Tutorial
 
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General user architecture of a database - Database Tutorial 60 - Oracle DBA Tutorial This video explains the basic architecture of the user configurations. 1. The clients will use the Web Servers to browse a company's website. 2. The Website will present the applications to the clients. 3. For example, if it is a railway website, there could be ticketing application. 4. The application will in-turn talk to a database in the backend. 5. To do that, it has to connect using an user name. 6. That user will also be a generic user, meaning that, it will not be attached to any employees. 7. That user will have access to the objects owned by the schema. 8. That user is called as the 'application user'.
Views: 3208 Sam Dhanasekaran
Oracle Database Dictionary - Database Tutorial 41
 
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Video 41 - Oracle Database Dictionary - Database Tutorial This lesson explains about the Oracle Dictionary table called DICT. It also gives some example commands using DBA_USERS. Oracle stores all the information about the database in to a group of several tables and views called Dictionary. These object are vital for the database to function. Using these objects we will get to know about the users, tables and other objects that are stored in the database. Dictionary also gives information about the performance metrics of the database.
Views: 2529 Sam Dhanasekaran
#2 Rails With Oracle - Installing Oracle 11g
 
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👇 Link in Description 👇 It's been 3 months since I last uploaded any videos since I was doing an internship. In this video, we will installed Oracle 11g in an easy process. Later we will upgrade our Oracle to use APEX 5 so stay tuned! Be sure to remember your password, or store it somewhere safe. 💎 Oracle 11g 💎 http://www.oracle.com/technetwork/database/database-technologies/express-edition/downloads/index.html 💎 APEX 5 💎 http://www.oracle.com/technetwork/developer-tools/apex/downloads/index.html Be sure to subscribe to my channel 👍 and turn on that nice notification bell button 🔔
Views: 195 Mohd Zafranudin
Part 6   Transform rows into columns in sql server
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/06/part-6-transform-rows-into-columns-in.html This is another common sql server interview question. We will be using Countries table in this example. SQL to create the table Create Table Countries ( Country nvarchar(50), City nvarchar(50) ) GO Insert into Countries values ('USA','New York') Insert into Countries values ('USA','Houston') Insert into Countries values ('USA','Dallas') Insert into Countries values ('India','Hyderabad') Insert into Countries values ('India','Bangalore') Insert into Countries values ('India','New Delhi') Insert into Countries values ('UK','London') Insert into Countries values ('UK','Birmingham') Insert into Countries values ('UK','Manchester') Here is the interview question. Write a sql query to transpose rows to columns. Using PIVOT operator we can very easily transform rows to columns. Select Country, City1, City2, City3 From ( Select Country, City, 'City'+ cast(row_number() over(partition by Country order by Country) as varchar(10)) ColumnSequence from Countries ) Temp pivot ( max(City) for ColumnSequence in (City1, City2, City3) ) Piv
Views: 194288 kudvenkat
Changing Orders Database Index
 
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Change the database index on the orders table of the WordPress Shopping Cart plugin http://tribulant.com/plugins/view/10/wordpress-shopping-cart-plugin
Views: 733 Antonie Potgieter
How to Install Oracle! !! Database Training
 
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For Complete Database Training Details Visit: http://www.qaonlinetraining.com http://infotek-solutions.com/ Delivery Method: Instructor led classroom and Online Training supported by world class Learning management system which automate all flow of lectures, videos, assignments, forums, quizzes and interview process. Class Schedule: Week-ends and Weekdays Contact Us: 571-437-0652, Mail Us: [email protected] Training Locations at : Ashburn / Fairfax / Maryland Office Address: 12801 Worldgate Dr #500, Herndon, VA 20170 Overview of Oracle DBA Training Oracle as a flexible, complex & robust RDBMS The evolution of hardware and the relation to Oracle Different DBA job roles (VP of DBA, developer DBA, production DBA, database babysitter) The changing job role of the Oracle DBA Environment management (network, CPU, disk and RAM) Instance management (managing SGA regions) Oracle table and index management Instance Architecture Instance vs. database Components of an instance Creating the OFA file structure ($DBA, bdump, udump, pfile) Oracle Instance Internals SGA vs. PGA Background processes Interfaces with server and disk I/O subsystem Using SQL*Plus for DBA management Connecting and executing SQL Using the “as sysdba” syntax Overview of SQL*Plus DBA commands (startup, etc.) Control file, UNDO and REDO management Explaining the use of control files Listing the Contents of the control File File locations for control Files Obtaining Control File Information Listing control file contents Displaying and Creating Undo segments Altering Undo Segments Determining the Number and Size of Undo segments Understanding flashback technology Troubleshooting Undo – snapshot too old Redo log concepts for recovery Online redo log (log_buffer) online redo logs and archived redo logs Oracle ARCH and LGWR background processes Redo log dictionary queries Redo log switch frequency and performance Multiplexing the Online Redo Log Files Archiving the Oracle Redo Logs Recovery using the redo log files User and privilege management The three security methods (VPD, Grant security/role-based security, grant execute) Creating New Database Users Using pre-spawned Oracle connections Auditing User activity Identifying System and Object Privileges Granting and Revoking Privileges Creating and Modifying Roles Displaying user security Information from the Data Dictionary Overview of instance management Parameter files (init.ora, listener.ora, tnsnames.ora) Rules for sizing SGA components Automated Oracle memory management (AMM) Initialization file management Creating the init.ora file Using spfile Displaying init.ora values with v$parameter Oracle*Net configuration Creating the listener.ora file Creating the tnsnames.ora file Data buffer configuration & sizing Inside the Oracle data buffers Using the KEEP pool Monitoring buffer effectiveness Using multiple blocksizes (multiple buffer pools) Shared pool and PGA configuration & Sizing Shared pool concepts and components Understanding the library cache Relieving shared pool contention Overview of PGA for sorting and hash joins Using sort_area_size, hash_area_size and pga_aggregate_target Troubleshooting network connectivity Verifying network connectivity with ping and tnsping Testing database links Oracle tables, views and materialized views Types of Oracle tables (regular, IOT, sorted hash clusters, nested tables) Oracle Views Oracle materialized views Oracle indexes Types of Oracle indexes (b-tree, bitmap, bitmap join index) Creating B*-Tree, bitmap and function-based Indexes Function-based indexes Finding indexing opportunities Index maintenance Oracle constraints Costs & benefits of constraints Types of Oracle indexes constraints (check, not null, unique, PK, FK) Cascading constraints Schema, File & tablespace management Describing the relationship between data files, tablespaces and table Understanding Oracle segments Creating Tablespaces – using the autoextend option Changing the Size of Tablespaces – alter database datafile command Defining a TEMP tablespace Changing the default storage Settings for a tablespace Review of the storage parameters in DBA views (ASM, ASSM, pctfree, pctused and freelists). Monitoring Chained rows (fetch continued rows) Monitoring Insert and Update performance (pctused, APPEND) Database Maintenance Reason for reorgs – chained rows, imbalanced freelists Reorganizing Tables using Export and Import Using CTAS to reorganize data Index rebuilding Backup & Recovery overview (hot & cold Backups, RMAN, block change tracking) Oracle DBA Utilities Data pump (Imp and exp utilities) SQL*Loader LogMiner Flashback DataGuard Oracle DBA utilities – Oracle dbms packages (dbms_redefinition)
Get Started with Table Functions Module 1: Overview and Fundamentals
 
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This video is part of the Oracle Dev Gym class "Getting Started with Table Functions". This module offers an overview of table functions: what they are, how they work, and a simple example of a table function that returns a collection of scalar values. You can watch this video independent of the class, but then you miss out on the videos and quizzes. So we encourage you to go to the page below and register for the class! https://devgym.oracle.com/pls/apex/dg/class/getting-started-with-pl-sql-table-functions.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2018 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
JavaScript Module as UDF in Oracle SQL
 
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This is a demonstration of Oracle's experimental Multilingual Engine (MLE) technology. A module from NPM is installed in the client, uploaded to the database, and then called as a user-defined function from SQL. Learn more here: http://www.oracle.com/technetwork/database/multilingual-engine/overview/index.html ============================ Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Oracle Table Space and User Creation with grant Privileges
 
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--------------Table space Creation-------------------- Syntax CREATE TABLESPACE 'DATA FILE NAME' DATAFILE 'Data File Path to store the data' SIZE 'SIZE in MB' AUTOEXTEND ON NEXT 'SIZE in KB/MB' MAXSIZE UNLIMITED LOGGING ONLINE PERMANENT EXTENT MANAGEMENT LOCAL AUTOALLOCATE BLOCKSIZE 'SIZE in KB' SEGMENT SPACE MANAGEMENT AUTO FLASHBACK ON; CREATE TABLESPACE ORA12CR2_DATA DATAFILE 'E:\OracleDB\app\ORA12CR2_DATA.dbf' SIZE 2048M AUTOEXTEND ON NEXT 8K MAXSIZE UNLIMITED LOGGING ONLINE PERMANENT EXTENT MANAGEMENT LOCAL AUTOALLOCATE BLOCKSIZE 8K SEGMENT SPACE MANAGEMENT AUTO FLASHBACK ON; CREATE TABLESPACE ORA12CR2_INDEX DATAFILE 'E:\OracleDB\app\ORA12CR2_INDEX.dbf' SIZE 1024M AUTOEXTEND ON NEXT 8K MAXSIZE UNLIMITED LOGGING ONLINE PERMANENT EXTENT MANAGEMENT LOCAL AUTOALLOCATE BLOCKSIZE 8K SEGMENT SPACE MANAGEMENT AUTO FLASHBACK ON; Increasing the Tablespace space: ALTER DATABASE DATAFILE 'E:\OracleDB\app\ORA12CR2_DATA.dbf' RESIZE 5120M; ALTER DATABASE DATAFILE 'E:\OracleDB\app\ORA12CR2_DATA.dbf' AUTOEXTEND ON NEXT 512M MAXSIZE UNLIMITED; ALTER DATABASE DATAFILE 'E:\OracleDB\app\ORA12CR2_INDEX.dbf' RESIZE 2048M; ALTER DATABASE DATAFILE 'E:\OracleDB\app\ORA12CR2_INDEX.dbf' AUTOEXTEND ON NEXT 512M MAXSIZE UNLIMITED; ------------User Creation and Grant Privileges Syntax:- CREATE USER 'USER NAME' IDENTIFIED BY 'Password' DEFAULT TABLESPACE 'Table Space Name' TEMPORARY TABLESPACE TEMP PROFILE DEFAULT ACCOUNT UNLOCK; Example:- CREATE USER DEMOUSER IDENTIFIED BY DEMOUSER DEFAULT TABLESPACE ORA12CR2_DATA TEMPORARY TABLESPACE TEMP PROFILE DEFAULT ACCOUNT UNLOCK; alter profile DEFAULT limit PASSWORD_REUSE_TIME unlimited; alter profile DEFAULT limit PASSWORD_LIFE_TIME unlimited; GRANT DBA TO DEMOUSER; ALTER USER DEMOUSER DEFAULT ROLE ALL; -- 16 System Privileges for DEMOUSER GRANT CREATE ROLE TO DEMOUSER; GRANT CREATE TYPE TO DEMOUSER; GRANT CREATE VIEW TO DEMOUSER; GRANT CREATE TABLE TO DEMOUSER; GRANT ALTER SESSION TO DEMOUSER; GRANT CREATE SESSION TO DEMOUSER; GRANT CREATE SYNONYM TO DEMOUSER; GRANT CREATE TRIGGER TO DEMOUSER; GRANT CREATE ANY TYPE TO DEMOUSER; GRANT CREATE SEQUENCE TO DEMOUSER; GRANT CREATE ANY INDEX TO DEMOUSER; GRANT CREATE PROCEDURE TO DEMOUSER; GRANT CREATE ANY TRIGGER TO DEMOUSER; GRANT CREATE DATABASE LINK TO DEMOUSER; GRANT UNLIMITED TABLESPACE TO DEMOUSER; GRANT SELECT ANY DICTIONARY TO DEMOUSER; GRANT DEBUG CONNECT SESSION TO DEMOUSER; GRANT DEBUG ANY PROCEDURE TO DEMOUSER; GRANT CREATE ANY MATERIALIZED VIEW TO DEMOUSER; GRANT GLOBAL QUERY REWRITE TO DEMOUSER; -- 2 Tablespace Quotas for DEMOUSER ALTER USER DEMOUSER QUOTA UNLIMITED ON ORA12CR2_DATA; ALTER USER DEMOUSER QUOTA UNLIMITED ON ORA12CR2_INDEX; -- 1 Object Privilege for DEMOUSER CREATE OR REPLACE DIRECTORY DB_EXP_IMP AS 'E:\OracleDB\app'; GRANT READ, WRITE ON DIRECTORY DB_EXP_IMP TO DEMOUSER;
Oracle SQL Developer Tutorial For Beginners  20   Schema vs User
 
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Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 2258 Sam Dhanasekaran
Top 10 exciting features of SQL server
 
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Top 10 exciting features of SQL server; SQL Developer supports the following main features when transferring from Microsoft SQL Server. It automatically converts column data types to appropriate Oracle data types as well as automatically resolves object name conflicts, such as conflicts with Oracle reserved words. 1. Column store indexes: Column store indexes are an unexpected and amazing feature. You can get this feature when you right click on the indexes folder as “Non-Clustered Column store Index”. Relational database store information “row wise”. These rows are additionally stored in 8 KB page size. It has a table with two columns “Column1” and “Column2”. You can see how the data is stored in two pages i.e. “page1” and “page2”. “Page1” has two rows and “page2” also has two rows. Now if you want to fetch only “column1”, you have to pull records from two pages i.e. “Page1” and “Page2. On the off chance that some way or another we can store information segment shrewd we can abstain from getting information from various pages. That is the thing that section store files do. When you make a section store record it stores same segment information in a similar page. It has to get "column1" information just from one page as opposed to questioning various pages. Read more: http://www.amazoninfy.com/2018/06/top-10-exciting-features-of-sql-server.html http://www.trendypeaks.com/2018/06/aro-real-estate-software-real-estate.html http://www.amazoninfy.com/2018/06/top-10-exciting-features-of-sql-server.html http://adtubeindia1.blogspot.com/2018/06/sql-database-software-free-database.html http://www.comparecrmsoftware.net/2018/06/crm-strategy-and-implementation.html Like us on FB: facebook.com/adtubeindia
Views: 1 adtube india
DMW   Accelerate Data Cleansing
 
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Oracle Health Sciences Data Management Workbench is the industry’s only, true, end-to-end, clinical data management solution for data cleansing, integration and analysis. For more information, visit the Oracle Help Center. https://docs.oracle.com/en/industries/health-sciences/index.html ================================= To improve the video quality, click the gear icon and set the Quality to 1080p/720p HD. For more information, see http://www.oracle.com/goto/oll and http://docs.oracle.com Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Part 5   SQL query to find employees hired in last n months
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-5-sql-query-to-find-employees.html This question is asked is many sql server interviews. If you have used DATEDIFF() sql server function then you already know the answer. -- Replace N with number of months Select * FROM Employees Where DATEDIFF(MONTH, HireDate, GETDATE()) Between 1 and N
Views: 174247 kudvenkat
SQL Server 29 - How to Name Constraints
 
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Our database has some primary and foreign keys, but occasionally people want to name them. That way, we can refer to a constraint specifically by a user friendly name. The trick is to simply add CONSTRAINT xx_ConstraintName before the constraint. Typically, the constraint name will follow the pattern of 2 letters to represent what type of constraint, followed by an Underscore, followed by the name. Here is an example: CREATE TABLE Interests( AnimalID INT NOT NULL, SpeciesID INT NOT NULL, CONSTRAINT PK_Interests PRIMARY KEY (AnimalID, SpeciesID) ); Now what do you name the constraint? Ultimately, that is a decision that is up to you. There are some conventions. The convention I used in this example is known as Hungarian notation. Hungarian notation is when we include what the thing is inside of the name. By prefixing the name with PK_ we automatically know that this is a primary key constraint. Some people prefer to put the PK at the end, and some people don't like to put it in there at all. Then, after the PK_, I put the name of the table to say that it is the primary key for that table. We can do the same with the foreign keys: CREATE TABLE Interests( AnimalID INT NOT NULL, SpeciesID INT NOT NULL, CONSTRAINT FK_InterestsAnimals FOREIGN KEY (AnimalID) REFERENCES Animals(ID), CONSTRAINT FK_InterestsSpecies FOREIGN KEY (AnimalID) REFERENCES Animals(ID), CONSTRAINT PK_Interests PRIMARY KEY (AnimalID, SpeciesID) ); The naming convention for the foreign keys is FK_ followed by the table name, followed by the Table it references. This is an okay naming convention. It can get confusing if you, for example had two columns from the Interests table referencing the Animals table. Much better. Why is it so important to name constraints? One of the primary reasons is so if SQL Server ever complains about a constraint violation, you will know exactly what constraint it is talking about without having to go search for it: INSERT INTO Interests VALUES (1, 3); SQL Server responds with: "The INSERT statement conflicted with the FOREIGN KEY constraint "FK_InterestsAnimals". This is an example of an INSERT statement. We will introduce this in more detail in the next video. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 2381 Caleb Curry
View Randomization Numbers and Mark Numbers Used in Error
 
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For more information, visit the Oracle Help Center. https://docs.oracle.com/en/industries/health-sciences/index.html ================================= To improve the video quality, click the gear icon and set the Quality to 1080p/720p HD. For more information, see http://www.oracle.com/goto/oll and http://docs.oracle.com Copyright © 2019 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Deploying an Application with Oracle Java Cloud Service
 
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This video shows you how to deploy a Java EE application to an instance in Oracle Java Cloud Service. Please note that Oracle develops its cloud services in an agile manner and makes rapid changes to meet our users' needs. Therefore this video may not reflect all of the changes since the last update to this service. For the very latest information, please visit Java Cloud Service Help Center at http://docs.oracle.com/en/cloud/paas/java-cloud/index.html. ================================= To improve the video quality, click the gear icon and set the Quality to 1080p/720p HD. For more information, see http://www.oracle.com/goto/oll and http://docs.oracle.com Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
COL8: Non-Sequential Indexing in Associative Arrays
 
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This lesson explores how to take advantage of the wide range of integer index values and the possible sparseness of associative arrays to construct and use non-sequentially filled collections. This video was taken from PLSQLChannel.com, originally recorded before Steven Feuerstein re-joined Oracle in March 2014. ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
ORACLE 10G EXPRESS EDITION INSTALLATION
 
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TODAY HOW TO INSTALL ORACLE 11G EXPRESS EDITION OPEN BROWSER SEARCH IN GOOGLE ORACLE 11 G EXPRESS EDITION DOWNLOAD http://www.oracle.com/technetwork/database/database-technologies/express-edition/downloads/index.html ALREADY I WAS DOWNLOADED THE SETUP SEE THE INSTALLATION OF ORACLE 11G EXPRESS EDITION TYPE THE PASSWORD YOUR WISH I WISH TO KEEP ADMIN DEFAULT USERNAME IS SYSTEM SO YOU CAN USE THE NAME AS A USERNAME TO LOGIN AND PASSWORD IS MINE IS admin NOW YOU CAN USE SQL COMMANDS AND CREATE TABLES ALL SQL AND ORACLE PROGRAMMES IF YOU LIKE THE VIDEO PLEASE SUBSCRIBE & SHARE
Views: 66 Sanjay Ramasamy
Hello, My Name is Kent Hovind 6: A Headful of Rocks
 
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If you like my videos, please consider supporting me on Patreon: https://www.patreon.com/logicked In this video, I barely manage to stay on topic, and Kent tells us about the amazing physically impossible origins of the Grand Canyon. Featuring the magnificent return of SchizophrenicQueen as the Oracle of Toronto! I cover approximately minutes 47-60 of the 110-minute "100 Reasons Evolution is So Stupid!". Geology. The title is the magnificent opening line of Kent's first doctoral dissertation, my favourite document in the history of ever: https://file.wikileaks.org/file/kent-hovind-doctoral-dissertation.pdf ------------------------- Featuring the glorious return of the Oracle of Toronto, SchizophrenicQueen: https://www.youtube.com/user/SchizophrenicQueen Opening animation - ArguingFromIgnorance's animation of me fighting a dinosaur (which is actually Xandar's Meteor): https://www.youtube.com/watch?v=0e4nadA3VmU ArguingFromIgnorance (definitely subscribe to this one!): https://www.youtube.com/channel/UCzFNr3ZDIlTETxF0S8DpwOQ Intro/Outro Music: "Tribute to Kent Hovind" by eddygoombah: https://www.youtube.com/watch?v=7sEIiWKSzJA Intro/Outro Music Animation by TheLivingDinosaur: https://www.youtube.com/watch?v=G9ByUu1UaGU Many thanks to eddygoombah for the generous permission to use his music, and TheLivingDinosaur for the use of the accompanying video! Go check out their channels if you haven't already. Guitar Music: Audionautix - Banjo Hop (YouTube Audio Library) Bible Mocking Music: Silent Partner - Come to Win (YouTube Audio Library) Mouth Coil / Fabricated Shitribbon Music: Thantifaxath - The Bright White Nothing at the End of the Tunnel Oracle Music: Bumbly March - Music to Delight by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100425 Artist: http://incompetech.com/ ------------------------- Hovind 2005 affidavit - Details of "teaching" (read: preaching) career: http://nebula.wsimg.com/67e4accc6cfe4852a1f3568b3baa46e0?AccessKeyId=C76519C97E8761FC1F1F&disposition=0&alloworigin=1 Free Kent Hovind page with link to that affidavit: http://freekenthovind.com/kent-hovinds-case/ Direct link to affidavit: http://nebula.wsimg.com/67e4accc6cfe4852a1f3568b3baa46e0?AccessKeyId=C76519C97E8761FC1F1F&disposition=0&alloworigin=1 Hovind YouTube (consider this a shout-out): https://www.youtube.com/channel/UCxiEtqPja47nnqsJNrdOIQQ/about Colorado River delta info: http://fire.biol.wwu.edu/trent/alles/GeologySaltonTrough.pdf John William Dawson - Acadian Geology (1868) - https://books.google.ca/books?id=6_pLAAAAMAAJ&printsec=frontcover&source=gbs_ge_summary_r&cad=0#v=onepage&q&f=false Summary of Dawson regarding the Joggins trees: http://www.talkorigins.org/faqs/polystrate/trees.html Field trip "polystrate tree" updated URL - http://bps-al.org/trips/19990724.html Kent and Lonestar video clips are from: "Kent Hovind's Ph.D" (not sure which speech it's from. I'm not a loyal viewer): https://www.youtube.com/watch?v=xSWlHzqB6C8 "Dr. Kent Hovind's first video in freedom! (test run)", Kent Hovind Official YouTube channel: https://www.youtube.com/watch?v=fgfz-_j_7L4 "Rant 7- Grand Canyon Took Millions of Years to Form" (dunno which one this is from either): https://www.youtube.com/watch?v=ze5A2pua1E4 "Kent Hovind Learns of Logicked": https://www.youtube.com/watch?v=B6hFeScMZNw "www.FREEKENTHOVIND.com and DON'T GIVE UP UNTIL KENT IS FREE!" Lonestar1776 YouTube channel: https://www.youtube.com/watch?v=BWeJAVIWL2w "james Randi,Richard Dawkins vs Kent Hovind Leviathan The Fire Breathing Dragon of Job 41" (no idea which speech this is either, but it's sick): https://www.youtube.com/watch?v=XyIsPUN72Ic "Kent Hovind - CSE 103 - Class 06": https://www.youtube.com/watch?v=EZTroN66ixE ------------------------- Original Video: http://youtu.be/bzqJUYl3YAw
Views: 154119 Logicked
Stored procedures in sql server   Part 18
 
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In this video we will learn 1. What is a stored procedure 2. Stored Procedure example 3. Creating a stored procedure with parameters 4. Altering SP 5. Viewing the text of the SP 6. Dropping the SP 7. Encrypting stored procedure Text version of the video http://csharp-video-tutorials.blogspot.com/2012/08/stored-procedures-part-18.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-18-stored-procedures.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 742716 kudvenkat
Part 12   Can we join two tables without primary foreign key relation
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/09/part-12-can-we-join-two-tables-without.html Can we join two tables without primary foreign key relation Yes, we can join two tables without primary foreign key relation as long as the column values involved in the join can be converted to one type. ID column in Departments table is not the primary Key and DepartmentId column in Employees table is not the foreign key. But we can still join these tables using ID column from Departments table and DepartmentId column from Employees table, as both the columns involved in the join have same data type i.e int. Select Employees.Name as EmployeeName, Departments.Name as DepartmentName from Employees join Departments on Departments.ID = Employees.DepartmentId The obious next question is, if primary foreign key relation is not mandatory for 2 tables to be joined then what is the use of these keys? Primary key enforces uniqueness of values over one or more columns. Since ID is not a primary key in Departments table, 2 or more departments may end up having same ID value, which makes it impossible to distinguish between them based on the ID column value. Foreign key enforces referential integrity. Without foreign key constraint on DepartmentId column in Employees table, it is possible to insert a row into Employees table with a value for DepartmentId column that does not exist in Departments table. The following insert statement, successfully inserts a new Employee into Employees table whose DepartmentId is 100. But we don't have a department with ID = 100 in Departments table. This means this employee row is an orphan row, and the referential integrity is lost as result Insert into Employees values (8, 'Mary', 'Female', 80000, 100) If we have had a foreign key constraint on DepartmentId column in Employees table, the following insert statement would have failed with the following error. Msg 547, Level 16, State 0, Line 1 The INSERT statement conflicted with the FOREIGN KEY constraint. The conflict occurred in database "Sample", table "dbo.Departments", column 'ID'.
Views: 116983 kudvenkat
Database Lesson #7 of 8 - Database Indexes
 
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Dr. Soper gives a lecture on database indexes. Topics covered include index concepts, linear vs. binary search strategies, estimating index storage space requirements, B-tree indexes, bitmap indexes, hash indexes, and clustered vs. non-clustered indexes.
Views: 95986 Dr. Daniel Soper
Check Whether a Site Received a Shipment
 
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For more information, visit the Oracle Help Center. https://docs.oracle.com/en/industries/health-sciences/index.html ================================= To improve the video quality, click the gear icon and set the Quality to 1080p/720p HD. For more information, see http://www.oracle.com/goto/oll and http://docs.oracle.com Copyright © 2019 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
The Vanishing One Second Waits
 
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In this video Chris uses performance black magic to make a query that should take three seconds execute instantly. Watch the video to find out how you can use the same technique to reduce the execution time of your queries. ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1554 The Magic of SQL
Part 4   Delete duplicate rows in sql
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/05/part-4-delete-duplicate-rows-in-sql.html In this video, we will discuss deleting all duplicate rows except one from a sql server table. SQL Script to create Employees table Create table Employees ( ID int, FirstName nvarchar(50), LastName nvarchar(50), Gender nvarchar(50), Salary int ) GO Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (1, 'Mark', 'Hastings', 'Male', 60000) Insert into Employees values (2, 'Mary', 'Lambeth', 'Female', 30000) Insert into Employees values (2, 'Mary', 'Lambeth', 'Female', 30000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) Insert into Employees values (3, 'Ben', 'Hoskins', 'Male', 70000) The delete query should delete all duplicate rows except one. Here is the SQL query that does the job. PARTITION BY divides the query result set into partitions. WITH EmployeesCTE AS ( SELECT *, ROW_NUMBER()OVER(PARTITION BY ID ORDER BY ID) AS RowNumber FROM Employees ) DELETE FROM EmployeesCTE WHERE RowNumber ] 1
Views: 340249 kudvenkat
(Theory 1)  Database 1 Review
 
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This is my first video of my weekly database tasks (oracle), my Name is Rimawanti Fauzyah from Engineering Polytechnic Institute of Surabaya. I will now discuss about review of database 1. Enjoy :))