Home
Search results “Select from subquery in oracle”
Understanding Correlated Queries in SQL
 
08:13
Join Discussion: http://www.techtud.com/video-lecture/understanding-correlated-queries-sql IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 43857 Techtud
SQL Server interview questions :- What are Sub Query and Co-related Queries ?
 
09:39
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 video we will try to understand what are SQL server sub queries , co-related queries and how they differ from each other. 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: 239943 Questpond
06-05-subqueries-in-from-select.mp4
 
08:02
Help us caption and translate this video on Amara.org: http://www.amara.org/en/v/Blwu/ Help us caption & translate this video! http://amara.org/v/Blwu/
Views: 53210 Stanford Dbclass
SQL Tutorial 12 Advanced Subqueries returning multiple columns
 
14:22
SQL Tutorial on Advanced Subqueries returning multiple columns Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko : https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1
Views: 49730 Telusko
Oracle - Sub-Queries
 
07:03
Oracle - Sub-Queries
Views: 10023 Chris Ostrowski
Recursive Subquery Factoring : Hierarchical Queries Using Recursive WITH Clauses
 
04:05
This video demonstrates one of the ways to query hierarchical data from Oracle. For more information see: https://oracle-base.com/articles/11g/recursive-subquery-factoring-11gr2 Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Jeff Smith Blog: http://www.thatjeffsmith.com Twitter: https://twitter.com/thatjeffsmith Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 10024 ORACLE-BASE.com
Subqueries in sql   Part 59
 
14:34
In this video we will discuss about subqueries in sql server. Let us understand subqueris with an example. Please create the required tables and insert sample data using the script below. Create Table tblProducts ( [Id] int identity primary key, [Name] nvarchar(50), [Description] nvarchar(250) ) Create Table tblProductSales ( Id int primary key identity, ProductId int foreign key references tblProducts(Id), UnitPrice int, QuantitySold int ) Insert into tblProducts values ('TV', '52 inch black color LCD TV') Insert into tblProducts values ('Laptop', 'Very thin black color acer laptop') Insert into tblProducts values ('Desktop', 'HP high performance desktop') Insert into tblProductSales values(3, 450, 5) Insert into tblProductSales values(2, 250, 7) Insert into tblProductSales values(3, 450, 4) Insert into tblProductSales values(3, 450, 9) Write a query to retrieve products that are not at all sold? This can be very easily achieved using subquery as shown below. Select [Id], [Name], [Description] from tblProducts where Id not in (Select Distinct ProductId from tblProductSales) Most of the times subqueries can be very easily replaced with joins. The above query is rewritten using joins and produces the same results. Select tblProducts.[Id], [Name], [Description] from tblProducts left join tblProductSales on tblProducts.Id = tblProductSales.ProductId where tblProductSales.ProductId IS NULL In this example, we have seen how to use a subquery in the where clause. Let us now discuss about using a sub query in the SELECT clause. Write a query to retrieve the NAME and TOTALQUANTITY sold, using a subquery. Select [Name], (Select SUM(QuantitySold) from tblProductSales where ProductId = tblProducts.Id) as TotalQuantity from tblProducts order by Name Query with an equivalent join that produces the same result. Select [Name], SUM(QuantitySold) as TotalQuantity from tblProducts left join tblProductSales on tblProducts.Id = tblProductSales.ProductId group by [Name] order by Name From these examples, it should be very clear that, a subquery is simply a select statement, that returns a single value and can be nested inside a SELECT, UPDATE, INSERT, or DELETE statement. It is also possible to nest a subquery inside another subquery. According to MSDN, subqueries can be nested upto 32 levels. Subqueries are always encolsed in paranthesis and are also called as inner queries, and the query containing the subquery is called as outer query. The columns from a table that is present only inside a subquery, cannot be used in the SELECT list of the outer query. Next Video: What to choose for performance? Queries that involve a subquery or a join Text version of the video http://csharp-video-tutorials.blogspot.com/2013/01/subqueries-in-sql-part-59.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-59-subqueries-in-sql-server.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: 195311 kudvenkat
Oracle || Corelated Subqueries Part - 1 by Dinesh
 
23:42
DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
What is a sub-query Oracle Database
 
00:45
Learn how easy it is to make $100k and above by becoming an Oracle Database Administrator. Website: https://newayitsolutions.com Subscribe: https://newayitsolutions.com/page Enroll: https://newayitsolutions.com/enroll Youtube: newayitsolutions ------------------------------------------------------------------------------------------------------------------------------------------------------------- Follow on Facebook: https://www.facebook.com/newayitsolutions/ Follow on Twitter: https://twitter.com/Theoracledbaguy Follow on Instagram: https://www.instagram.com/oracledbatrainer/ Financing Available: https://newayitsolutions.com/loan-application School Locations: Atlanta, Maryland, Virginia ------------------------------------------------------------------------------------------------------------------------------------------------------------- Office Contact: 1-866-569-0205 Mobile Contact: 240-244-9935
How To Write SQL Subqueries
 
05:36
Subqueries are separate queries, which can be executed on each main query's result set. You can find more information and examples on http://www.itcuties.com/sql/sql-subqueries/.
Views: 75352 ITCuties
63 - Oracle Subqueries - Nested Queries تعليم أوراكل
 
33:25
by Mohamed El Desouki - محمد الدسوقى [email protected] Tel :00966 553450836 جامعة سلمان بن عبد العزيز - السعودية - الخرج Database 2 - Subqueries in Arabic Text Book: Fundamentals of Database Systems, 5th Edition, by Elmasri/Navathe, published by Addison-W
SQL Subqueries | SQL Tutorial for Beginners with Examples
 
06:09
SQL Subquery | SQL Tutorial for Beginners with Examples For Complete Tutorial watch https://www.youtube.com/watch?v=_vFiyFaQCPA SQL Tutorial. SQL is a standard language for storing, manipulating and retrieving data in databases. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. SQL Subquery, SQL subqueries
Views: 5246 Extern Code
50. Subquery or Inner Query or Nested Query in PL/SQL Oracle
 
03:40
In this video you will learn about Subquery or Inner Query or Nested Query in PL/SQL Oracle. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 6361 ITORIAN
Introduction to Nested Select Statements
 
09:03
Introduction to Nested Select Statements in SQL with a focus on contrasting the nested select technique to that of the natural join covered previously
Views: 7989 Brian Finnegan
2 of 6 SQL Advanced with Oracle - Type I subqueries, plus distinct, rollback and UPPER()
 
14:26
This video gives some examples of Type I subqueries. There are examples using IN and NOT IN. A Type I subquery is an alternative to using DISTINCT to remove duplicate rows. Subqueries, in general, are a good way to decompose a problem into smaller, simpler SQL statements. This video also shows examples of the UPPER() function and rollback. (2 of 6) There is also an "SQL Fundamentals" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 15050 Jennifer Kreie
Learn Oracle SQL : Understanding Subqueries
 
11:40
http://bit.ly/oracle-sql-course | Get the complete course today. Learn Oracle SQL : Understanding Subqueries: In this video, I explain the basics about subqueries in Oracle SQL. This is an excerpt of the course " Oracle SQL From Scratch " which you can get at a discounted price here: http://bit.ly/oracle-sql-course You can find additional Oracle SQL related articles and educational content in my blog here: http://standout-dev.com/
Views: 1022 Oracle SQL
SQL: Co-related Subqueries
 
04:39
In this tutorial, you'll learn what are co-related sub query and difference between plain sub query and co-related sub query..
Views: 14213 radhikaravikumar
8. SQL for Beginners - Subquery (Hindi)
 
11:29
In this video, you will learn what is subquery? what is it's need? how to deal with the situations using subquery?
Views: 5766 Ishwar Academy
Correlated subquery in sql   Part 60
 
07:59
In this video we will discuss about Corelated Subqueries In Part 59, we discussed about 2 examples that uses subqueries. Please watch Part 59, before proceeding with this video. We will be using the same tables and queries from Part 59. In the example below, sub query is executed first and only once. The sub query resutls are then used by the outer query. In a non-corelated subquery, the subquery can be executed independently of the outer query. Select [Id], [Name], [Description] from tblProducts where Id not in (Select Distinct ProductId from tblProductSales) If the subquery depends on the outer query for its values, then that sub query is called as a correlated subquery. In the where clause of the subquery below, "ProductId" column get it's value from tblProducts table that is present in the outer query. So, here the subquery is dependent on the outer query for it's value, hence this subquery is a correlated subquery. Correlated subqueries get executed, once for every row that is selected by the outer query. corelated subquery, cannot be executed independently of the outer query. Select [Name], (Select SUM(QuantitySold) from tblProductSales where ProductId = tblProducts.Id) as TotalQuantity from tblProducts order by Name Text version of the video http://csharp-video-tutorials.blogspot.com/2013/01/correlated-subquery-in-sql-part-60.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-60-co-related-subqueries.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: 121661 kudvenkat
Correlated Sub Queries Quickly
 
04:09
SQL Server Unlocked- Correlated Subqueries Quickly Thanks for returning for another episode of Joes 2 Pros SQL Server unlocked series. Today we will be discussing SQL Server correlated subqueries and how to perform them quickly. There are many different tips and tricks you can use with SQL Server in order to make your day easier. In the demonstration above, Morelan takes your through an example on how to create correlated subqueries by using a database of a fictional company that has employees and locations in different cities. Sometimes subqueries can be a bit confusing as they are a query nestled inside of another query, but Morelan does a great job creating a simplified example and explanation. Going through the example step-by-step really helps make sense of what can be a confusing topic. If you would like to learn more about correlated subqueries, please have a look at our Developer 2012 Volume 2 Video 12.2 class. See more at: http://www.joes2pros.com/joes2pros/courses Full Blog: http://joes2prosblog.social27.com/
Sub Queries
 
13:11
Join discussion here: http://www.techtud.com/video-lecture/sub-queries-sql IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 22164 Techtud
Advanced SQL SubQueries in Oracle Database
 
04:14
Learn to code advanced correlated SQL subqueries in the Oracle Database. From SkillBuilders.com/Oracle.
Views: 9235 SkillBuilders
SQL Tutorial 15 Advanced subquery, Inner query running multiple times, correlated subquery
 
05:31
SQL is a standard language for accessing databases. Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko : https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1
Views: 10277 Telusko
SQL Server - SubQueries and Correlated SubQueries
 
01:05:41
Please visit http://www.GoOnlineTrainings.com/ for details We have class room trainings at Data Mantra Technologies @ Ameerpet, Hyderabad, India [email protected] or call us @ +91 96421-20858, 96421-43942
Views: 124630 Bhaskar Jogi
SQL Correlated Subqueries
 
07:14
Demonstrates SQL correlated subqueries.
Views: 28250 Jamie King
Sub Query in oracle database in urdu.
 
02:43
How to write a subquery in oracle database in urdu.
Views: 2944 modern IT Channel
Learn Oracle SQL : The Hierarchical Query Clause
 
11:19
http://bit.ly/oracle-sql-course | Get the complete course today. Learn Oracle SQL : The Hierarchical Query Clause: In this video, I show you how to use the Hierarchical Query Clause in Oracle SQL to build a basic hierarchical query. This is an excerpt of the course "The Ultimate Oracle SQL Course" which you can get at a heavily discounted price here: http://bit.ly/oracle-sql-course ================ You can find additional Oracle SQL related articles and educational content in my blog here: http://standout-dev.com/
Views: 5233 Oracle SQL
SQL: Inline Views
 
06:24
In this Tutorial, you'll learn the advantages of inline view and how to make use of it..
Views: 17544 radhikaravikumar
EXIST Function in SQL
 
08:04
Join Discussion: http://www.techtud.com/video-lecture/exist-function-sql IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 33658 Techtud
Oracle Database  | Bangla Tutorials 15  ::  Sub Query | and Solved
 
10:50
www.facebook.com/oracle.shohag Email : [email protected] Website : www.oraclebangla.com Topics : Sub Query and Solved
Views: 2022 Oracle Bangla
Querying Multiple Tables with SQL
 
10:40
Demonstration of how to query two or more tables with SQL Server.
Views: 26757 Larry Domine
Part 1   How to find nth highest salary in sql
 
11:45
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-1-how-to-find-nth-highest-salary_17.html This is a very common SQL Server Interview Question. There are several ways of finding the nth highest salary. By the end of this video, we will be able to answer all the following questions as well. How to find nth highest salary in SQL Server using a Sub-Query How to find nth highest salary in SQL Server using a CTE How to find the 2nd, 3rd or 15th highest salary Let's use the following Employees table for this demo Use the following script to create Employees table Create table Employees ( ID int primary key identity, FirstName nvarchar(50), LastName nvarchar(50), Gender nvarchar(50), Salary int ) GO Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Mark', 'Hastings', 'Male', 60000) Insert into Employees values ('Steve', 'Pound', 'Male', 45000) Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Philip', 'Hastings', 'Male', 45000) Insert into Employees values ('Mary', 'Lambeth', 'Female', 30000) Insert into Employees values ('Valarie', 'Vikings', 'Female', 35000) Insert into Employees values ('John', 'Stanmore', 'Male', 80000) GO To find the highest salary it is straight forward. We can simply use the Max() function as shown below. Select Max(Salary) from Employees To get the second highest salary use a sub query along with Max() function as shown below. Select Max(Salary) from Employees where Salary [ (Select Max(Salary) from Employees) To find nth highest salary using Sub-Query SELECT TOP 1 SALARY FROM ( SELECT DISTINCT TOP N SALARY FROM EMPLOYEES ORDER BY SALARY DESC ) RESULT ORDER BY SALARY To find nth highest salary using CTE WITH RESULT AS ( SELECT SALARY, DENSE_RANK() OVER (ORDER BY SALARY DESC) AS DENSERANK FROM EMPLOYEES ) SELECT TOP 1 SALARY FROM RESULT WHERE DENSERANK = N To find 2nd highest salary we can use any of the above queries. Simple replace N with 2. Similarly, to find 3rd highest salary, simple replace N with 3. Please Note: On many of the websites, you may have seen that, the following query can be used to get the nth highest salary. The below query will only work if there are no duplicates. WITH RESULT AS ( SELECT SALARY, ROW_NUMBER() OVER (ORDER BY SALARY DESC) AS ROWNUMBER FROM EMPLOYEES ) SELECT SALARY FROM RESULT WHERE ROWNUMBER = 3
Views: 830619 kudvenkat
Oracle SQL Tutorial 9 - Intro to Queries
 
04:55
This video is for beginners who have never worked with SQL Developer, and we are going to teach how to begin writing queries. So the queries we are going to start with are queries when we give the database an expression and it will return back some kind of value. The most common keyword you are going to need to know for Oracle is SELECT. SELECT is the command we use to get data from the database. Even though we have not really put any data in our database, we can still use the SELECT statement to get data. That's because the database is capable of doing more than just creating tables and retrieving data from tables. So our first goal is to essentially write a Hello World, which just displays the text hello world to us. A good place to start is with: SELECT 'Hello World' This would actually work for many database management systems, but when you run it you will get an error. This actually doesn't work with Oracle, it will tell us we always need the FROM keyword. To get around this, there is a magical table called DUAL. We can put anything we want to SELECT and then say FROM DUAL and it will work. SELECT 'Hello World' FROM DUAL We can also do math: SELECT 1+1 FROM DUAL And we can run even run functions: SELECT SYSTIMESTAMP FROM DUAL To put all of this together, you can grab all of this data at the same time using commas to separate different columns from our generated table: SELECT 'Hello World', 1+1, SYSTIMESTAMP FROM DUAL Support me on Patreon: 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: 23384 Caleb Curry
5 of 6  SQL Advanced with Oracle - A query with nested aggregate functions
 
03:16
This video gives an example of nested aggregate functions. A subquery with aggregate functions is placed in the WHERE clause of the outer query, which also contains aggregate functions. (5 of 6) There is also an "SQL Fundamentals" series. (Search for "databasemec" for tutorials using SQL Server.)
Views: 9027 Jennifer Kreie
IN VS EXISTS VS JOIN, performance
 
05:04
This video demonstrates the performance effects of using an exists clause instead of an IN clause, also it shows how we can update a simple sub query having an IN clause with an EXISTS or JOIN statement. It also shows that joining would consider the null data, where as an IN clause would neglect null values. If you want more such videos of exciting and amazing 'difference between' concepts, check out the links below : union and union all : https://youtu.be/n9FqQOd8liY char and varchar2 : https://youtu.be/039qzwjWf4k replace and translate : https://youtu.be/HKYF77BGzOE procedure and function : https://youtu.be/q3LmOenL120 rank and dense_rank : https://youtu.be/WGSX998hZ9M delete and truncate : https://youtu.be/u76wMm2byXo %type and %rowtype : https://youtu.be/MlLUFeZ_3eM
Views: 10931 Kishan Mashru
Oracle SQL#68 SubQuery in Oracle SQL Database by rakesh malviya
 
08:15
Explaining what is SubQuery in Oracle SQL and How SubQuery internally work in Oracle SQL database a subquery is a query within a query(Parent and Child Query). You can create subqueries within your SQL statements. These subqueries can reside in the WHERE, FROM and SELECT clause ------------------------------------------------------------------------------ Assignment Link: Assignment Link will come Soon --------------------------------------------------------------------------------------- In this series we cover the following topics: SQL basics, create table oracle, SQL functions, SQL queries, SQL server, SQL developer installation, Oracle database installation, SQL Statement, OCA, Data Types, Types of data types, SQL Logical Operator, SQL Function,Join- Inner Join, Outer join, right outer join, left outer join, full outer join, self-join, cross join, View, SubQuery, Set Operator. follow Rakesh Malviya on: Facebook Page: https://www.facebook.com/LrnWthr-319371861902642/?ref=bookmarks Contacts Email: [email protected] Instagram: https://www.instagram.com/equalconnect/ Twitter: https://twitter.com/LrnWthR
Views: 24 EqualConnect Coach
SQL Tutorial - 21: The UPDATE Query
 
06:12
In this tutorial we'll check out the UPDATE Query which is used to update/change records in a table.
Views: 80492 The Bad Tutorials
sql query processing in oracle database
 
05:01
sql query processing in oracle database
learn oracle sql online | oracle tutorials 10
 
12:15
in this video i will show you how to use sub-query in oracle for more detail join our facebook group ,https://www.facebook.com/groups/242999206136244/ A subquery is a SELECT statement that is nested within another T-SQL statement. A subquery SELECT statement if executed independently of the T-SQL statement, in which it is nested, will return a result set. Meaning a subquery SELECT statement can standalone and is not depended on the statement in which it is nested. Subqueries are used to structure queries. In many cases, a subquery can be used instead of a JOIN , For database systems fully compliant with the SQL 92 standard, a subquery can also be used to provide one or more values in the SELECT clause. In most database systems, subqueries are typically part of the WHERE clause, as follows: WHERE column IN subquery WHERE column WHERE EXISTS subquery The subqueries themselves are complete SELECT statements, enclosed in parentheses. .----------------------------------------------------------------------------------------------------------. video courses- list of playlist : tips and trics link► https://www.youtube.com/playlist?list=PLOfLYVXrwqXrI5jvwUEi6N13QR4xCj2k2 command prompt commands: link►https://www.youtube.com/playlist?list=PLOfLYVXrwqXobXGUdGk6JhzyQ216dNiQL oracle sql: link►https://www.youtube.com/playlist?list=PLOfLYVXrwqXqoUWCoh4cARGDW13SofDO- c programming: link►https://www.youtube.com/playlist?list=PLOfLYVXrwqXrZ_Ub8EXeLY7YP1YxhoJzf .-----------------------------------------------------------------------------------------------------------. watch more videos: learn oracle sql online overview tutorail : https://www.youtube.com/watch?v=Dfesgj4w8QA&t=8s how to fix or repair a corrupted usb flash drive or cd card using command prompt: https://www.youtube.com/edit?video_id... how to copy a folder using cmd: https://www.youtube.com/watch?v=Lblhb... how to move a folder using cmd: https://www.youtube.com/watch?v=YFfHZ... how to dell files in cmd: https://www.youtube.com/watch?v=3-lqg... how to make and remove directory: https://www.youtube.com/edit?video_id... how to change color and title in cmd: https://www.youtube.com/edit?video_id... how to change directory in command prompt: https://www.youtube.com/watch?v=SmLYx... .-----------------------------------------------------------------------------------------------------------. social media links: join our group: ► https://www.facebook.com/groups/24299... ► Follow on Google+: http://[email protected] ► Follow on Twitter: https://twitter.com/@rananavi4766669 :
Views: 21 The Learning Tree
The SQL EXISTS clause
 
08:52
How to use the EXISTS clause in SQL. For beginners.
Views: 21323 Database by Doug
SQL Aggregation queries using Group By, Sum, Count and Having
 
10:01
From SQL Queries Joes 2 Pros (Vol2) ch4.1. Learn up to write aggregated queries.
Views: 162098 Joes2Pros SQL Trainings
flashback in Oracle | Oracle SQL Tutorial Videos | Mr.Vijay Kumar
 
14:53
Flashback in Oracle SQL Tutorial
Views: 12544 Naresh i Technologies
Hierarchical Queries in Oracle/ عربي
 
16:39
start with & connect by prior Hierarchical Queries in Oracle ملاحظه : اشارة الاكبر غير مسموحة في الوصف --1--- select employee_id, first_name,last_name,manager_id from employees; --2--- select employee_id, first_name,last_name,manager_id from employees where manager_id=100; --3--- select employee_id, first_name,last_name,manager_id from employees where manager_id=101; --4--- select employee_id, first_name,last_name,manager_id from employees where manager_id=108; --5--- select employee_id, first_name,last_name,manager_id from employees where manager_id in (109,110,111,112,113) --6--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --7--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=113 connect by prior manager_id =employee_id --buttom up --8--- --let us take this and try to do nice thing --Neena Kochhar work for Steven King select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --9--- select first_name||' '||last_name ||' work for '|| (select first_name||' '||last_name from employees e where e.employee_id=a.manager_id ) from employees a start with employee_id=100 connect by prior employee_id=manager_id --top down --10--- select first_name||' '||last_name ||' work for '|| prior first_name||' '||prior last_name from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --11--- select level,employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --1 mean root --2 mean child of root --3 mean child of child , and so on --12--- select level,employee_id, first_name,last_name,manager_id from employees where level=2 start with employee_id=100 connect by prior employee_id=manager_id --13--- select lpad ('khaled',10, 0) from dual --14--- select level, case when level=1 then first_name||' '||last_name when level Greater sign 1 then lpad (first_name||' '||last_name,length(first_name||' '||last_name)+level-1, '-') end tree from employees start with employee_id=100 connect by prior employee_id=manager_id --top down ---------------------- --15--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by prior employee_id=manager_id --top down --16--- select employee_id, first_name,last_name,manager_id from employees start with employee_id=100 connect by manager_id= prior employee_id --top down
Views: 2197 khaled alkhudari
Understanding the use of GROUP BY clause in SQL
 
04:39
Join discussion: http://www.techtud.com/video-lecture/understanding-group-clause-sql IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 59438 Techtud
SQL 12c Tutorial :  SQL Sub Queries  IN , ANY, ALL
 
13:04
SQL 12c Tutorial : SQL Sub Queries IN , ANY, ALL SQL 12c Tutorial for beginners Oracle SQL Tutorial for beginners SQL Single Row Sub Queries SQL Multi Row Sub Queries SQL Correlated Sub Queries SQL Inline View
Views: 990 TechLake
How Oracle SQL Query Process
 
39:10
For complete professional training visit at: http://www.bisptrainings.com/course/Oracle-Fundamentals-and-PL-SQL-for-beginners Follow us on Facebook: https://www.facebook.com/bisptrainings/ Follow us on Twitter: https://twitter.com/bisptrainings Email: [email protected] Call us: +91 975-275-3753 or +1 386-279-6856
Views: 22915 Amit Sharma
Hierarchical Queries: Databases for Developers #16
 
09:38
Often data contains a parent-child relationship between rows in the same table. For example, company org charts and family trees. You can use the power of SQL to traverse these hierarchical relationships. There are two ways to do this in Oracle Database: - Connect By - Recursive With Watch this video to learn about data trees and find out how these work! Further reading: Hierarchical queries in the docs: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Hierarchical-Queries.html#GUID-0118DF1D-B9A9-41EB-8556-C6E7D6A5A84E Recursive subquery factoring in 11.2: https://oracle-base.com/articles/11g/recursive-subquery-factoring-11gr2 Take the course! https://devgym.oracle.com/pls/apex/dg/class/databases-for-developers-next-level.html Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ 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: 1617 The Magic of SQL
Oracle Select Where Clause. تعليم أوراكل
 
08:01
by Mohamed El Desouki - محمد الدسوقى [email protected] Tel :00966 553450836 جامعة سلمان بن عبد العزيز - السعودية - الخرج How to use the Where Clause with Select statement. كيفية إسترجاع صفوف محددة فى بتطبيق شرط محدد Text Book: Fundamentals of Database Systems, 5th Edition, by Elmasri/Navathe, published by Addison-W oracle create table statement oracle drop table statement oracle constraints database constraints primary key constraint foreign key constraint check constraint null not null constraint unique constraint insert into statement update statement delete statement select statement basic query where clause select where

Speculative cover letter definition and example
Free printable cover letter samples
Cover letter job references sheet
Fully executed contract cover letter
Example annotated bibliography nursing