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EXIST Function in SQL
 
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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: 33737 Techtud
How to use exists statement
 
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Hello Friends In this video i'm going to show you how to use exist in subquery step by step.
Views: 5385 OCP Technology
095- Oracle SQL 12c: Correlated Subquery / Exists /not exists
 
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تعلم اوراكل حتى الاحتراف EXAM 1Z0-061 EXAM 1Z0-071
Views: 1333 khaled alkhudari
IN VS EXISTS VS JOIN, performance
 
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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: 10944 Kishan Mashru
Let's Learn SQL! Lesson 82 : EXIST and NOT EXIST Subqueries
 
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Explore SQL with Tom Coffing of Coffing Data Warehousing! In this lesson, learn about EXIST and NOT EXIST Subqueries!
PL/SQL tutorial 60: Collection Method EXISTS in Oracle Database by Manish Sharma
 
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RebellionRider presents you the latest PL/SQL Tutorial 60 on Collection method EXISTS by Manish Sharma ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/exists-function Previous Tutorial ► ------------------------------------------------------------------------- ►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 http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the 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: 6360 Manish Sharma
The SQL EXISTS clause
 
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How to use the EXISTS clause in SQL. For beginners.
Views: 21323 Database by Doug
MS SQL #19 (EXISTS, NOT EXISTS)
 
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Witam Serdecznie w poradniku do Microsoft SQL Server, operujemy na darmowym oprogramowaniu Sql Server 2014 Management Studio.
Views: 566 Albrecht Xerxes
Understanding Set Comparison Operator in SQL
 
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Join Discussion on: http://www.techtud.com/video-lecture/understanding-set-comparison-operators 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: 10303 Techtud
Oracle PL/SQL - Why does it exist?
 
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Oracle PL/SQL - Why does it exist?
Views: 2412 Chris Ostrowski
ORACLE SQL AND PL/SQL INTERVIEW QUESTION : SUBQUERY WITH IN / EXISTS OR SELF JOIN
 
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This video demonstrates the solution of the oracle sql interview question like, find the employees where there manager's salary is more than 15000. This is a classic example of using a subquery or a self join to get the result.
Views: 2292 Kishan Mashru
Oracle da SQL asoslari 34 NOT IN, NOT EXISTS
 
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Darslar rivojiga hissa qo'shishni istovchilar uchun PayMe: 8600 1309 2342 8959 WEB MONEY ID: Z193564615070 yoki R769659687039
SQL Error ORA-00942 Table or View Does Not Exist in Oracle Database
 
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How to use Tab View (Data Dictionary) of Oracle Database to solve the SQL Error ORA-00942 Table or View Does Not Exist error in Oracle Database ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/ora-00942 Previous Tutorial ► ------------------------------------------------------------------------- ►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 http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the 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: 5403 Manish Sharma
SQL EXISTS VE NOT EXISTS KULLANIMI
 
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SQL: EXISTS Condition This SQL tutorial explains how to use the SQL EXISTS condition with syntax and examples. Click the Try It button next to an example to test it for yourself in our SQL Editor. Description The SQL EXISTS condition is used in combination with a subquery and is considered to be met, if the subquery returns at least one row. It can be used in a SELECT, INSERT, UPDATE, or DELETE statement.
Views: 14 gracia heys
Ms Sql Server Dersleri - EXISTS Kullanımı
 
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Sql server ile geriye true yada false olarak sonuç döndüren EXISTS yapısının kullanımını öğreniyoruz. http://www.yildirimsoker.com/sql-server-dersleri-exists-kullanimi/
Views: 2061 Yıldırım Söker
35. SQL EXISTS, how EXISTS differ from IN
 
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The SQL EXISTS clause How to use the EXISTS clause in SQL. For beginners. How to use exists statement Hello Friends In this video i'm going to show you how to use exist in subquery step by step.
Views: 430 ProSchool
FIX: ORA-01034 | Oracle Not Available | ORA-27101 | IO ERROR
 
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Please watch: "How to Rank Videos at #1 in Urdu/Hindi 2017, Using Tube Rank Jeet | SEO | Complete" https://www..com/watch?v=65dqd_lNpoc -~-~~-~~~-~~-~- For More Videos, Please Subscribe my Channel: https://www..com/channel/UCimOZdmTEByzJCpU6ARkuFg?sub_confirmation=1 How to connect to a Oracle Database? This video explains how to connection to an oracle database. The database, which is Oracle 11g has been installed in a Windows 7/Linux computer, steps to connect to oracle database through command prompt.....!!!!, In this video you are able to resolve the following oracle database error: 1) ORA-01034: Oracle not available, 2) ORA-27101: Shared memory realm does not exist, 3) IO Error: The network adaptor could not establish the connection, solution of error: Status : Failure -Test failed: Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor, - Oracle: TNS Error | Protocol Adaptor Error | No Listner, https://www..com/watch?v=s4C5ZBRzJLQ Website: http://mohammadzohaibsplixed.blogspot.com Emails: [email protected] [email protected] Facebook: https://www.facebook.com/SplixeD (Profile) https://www.facebook.com/MohammadZohaibSplixed (Page) Twitter: https://twitter.com/Mr_Zobi Skype: mohammadzohaibsplixed Song: Dread Pitt - Pyro
MySQL Tutorial #12 in Hindi: SubQuery(Nested Query) with EXISTS and NOT EXISTS Clause
 
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MySQL Tutorial #12 in Hindi: SubQuery(Nested Query) with EXISTS and NOT EXISTS Clause - Solved Examples MySQL tutorial for Beginners MySQL Installation Guide How to Install MySQL on windows 10
SQL Tutorial for beginners: Difference Between IN and EXISTS Operators in Oracle
 
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Difference Between IN and EXISTS Operators in Oracle SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 409 TechLake
Урок 27. SQL. Подзапрос EXISTS
 
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Oracle SQL.Подзапрос EXISTS является наиболее сложным типом подзапроса в SQL. Но мы попробуем разобраться, здесь очень важно Осознать, что подзапрос EXIST Является предикатом, возвращает нам либо истину либо ложь, то есть в подзапрос EXIST это критерий того, будет на экран выведена данная строка либо нет. Также подзапрос EXISTS подразумевает внешнее объединение то есть внутренний подзапрос связывается определённым отношением с внешним запросом учебная среда https://apex.oracle.com/pls/apex/ схема: SQLADV польз: student1 пароль: student1 будут работать (student2/ student2, student3/ student3 .... student11/ student11) меню SQL Workshop , SQL Command или используйте http://sqlfiddle.com/ скрипт бд для загрузки в sqlfiddle http://sqladv.ru/dev/sql.txt урок и задания http://sqladv.ru/dev/sqlbasic/l27.txt
Difference between IN and EXISTS clause in database
 
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Difference between IN and EXISTS clause in database
Views: 477 Techie Savy
PL/SQL tutorial 9: IF THEN ELSE (IF-ELSE) Statement in PL/SQL by Manish Sharma
 
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3rd tutorial in the series explaining IF-THEN-ELSE statement in Oracle PL/SQL with Example. Enjoy ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/if-then-else Previous Tutorial ► IF THEN Statement https://youtu.be/IWvuFD6eD30 ------------------------------------------------------------------------- ►►►Let's Get Free Uber Cab◄◄◄ Use Referral Code UberRebellionRider and get $20 free for your first ride. ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- ►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/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ 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: 57908 Manish Sharma
CHECKING IF EXISTS IN SQL SERVER
 
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This video for the beginner of SQL server programmer who are not fully understand how to checking if data exists do the correct condition and if data not exists do other transaction
Views: 13394 Sourn Sarim
SQL 136 Subselect, EXISTS with Subselects
 
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Explains how EXISTS with subselects work. From http://ComputerBasedTrainingInc.com SQL Course. Learn by doing SQL commands for ANSI Standard SQL, Access, DB2, MySQL, Oracle, PostgreSQL, and SQL Server.
Views: 4847 cbtinc
SQL SELECT - 13 - SUBCONSULTAS: EXISTS
 
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Todo lo que necesitas en: http://tutorialesnet.com Redes Sociales: http://tutorialesnet.com/twitter http://tutorialesnet.com/facebook
Views: 6468 TutorialesNET
EXISTS Operator in SQL Server Tamil
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg Specifies a subquery to test for the existence of rows. In this video you can check Exists and Not Exists with Simple Example Explained in Tamil
Views: 326 IT Port
ORACLE PL/SQL INTERVIEW :PALINDROME NUMBER PROGRAM
 
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This video tutorial demonstrates on the Oracle PL/SQL interview question of writing a program for finding whether a number or string is palindrome number or string or not, the video explains a very simple and generic approach that can be used to solve this question. You can get the code from our website http://oracleplsqlblog.com/FullBlog/FullBlog/16
Views: 2063 Kishan Mashru
DIFFERENCES BETWEEN IN AND EXISTS OPERATOR
 
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IN AND EXISTS OPERATORS
Views: 2102 SAINAATTH PITTLA
Oracle Database 12c Tutorial 3:Connect HR/SYS user with SQL Developer in Oracle12c Using TNS Service
 
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Learn how to connect HR and Sys User of Oracle database 12c With SQL Developer using TNS service. Connect HR user which is in pluggable database to SQL Developer ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : Previous Tutorial ► Tut 61: How To Unlock HR schema in Oracle Database 12c http://youtu.be/F81gfUnznZY ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] 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: 50895 Manish Sharma
Exist key word SQL
 
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Exist keyword in SQl using two tables :Reserve(sid,bid,date) and boat(bid,color)
Views: 1380 Saransh Sharma
Understanding Correlated Queries in SQL
 
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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: 44031 Techtud
IN v/s EXISTS v/s JOIN, which one will give better performance under what condition?
 
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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.
Views: 988 Kishan Mashru
SQL: WITH Clause
 
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In this tutorial, you'll learn will learn how to use with clause PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 11459 radhikaravikumar
EXISTS Operator in SQL Server
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg Specifies a subquery to test for the existence of rows. In this video you can check Exists and Not Exists with Simple Example
Views: 762 IT Port
Pegadinha da Semana Ep. 17 P1 - SQL Exists e Not Exists - Prof. Eduardo Neves 2015
 
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Esta é uma amostra em vídeo de um Curso completo sobre o tema. Mais informações em: http://www.ProvasdeTI.com.br/ Confira também nossa plataforma de simulados para quem está se preparando para Concursos Públicos ou Certificações na área de TI: http://www.Gabaritou.com.br/
Views: 1317 Portal Provas
Subqueries in sql   Part 59
 
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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: 195619 kudvenkat
Merge: Databases for Developers #17
 
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Sometimes when adding rows to your database need update-if-exists, insert-if-not-exists logic. Aka an upsert. You could write this as separate update and insert statements. But there is an easier way: Merge! Watch this video for an overview of how merge works. Further reading: Merge documentation: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/MERGE.html Delete rows not in the source using merge: https://technology.amis.nl/2006/10/14/have-merge-remove-records-from-target-that-are-not-in-the-source-oracle-10g/ 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: 560 The Magic of SQL
Difference between Case and Decode
 
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This video tutorial explains on how case statement and decode function are different from each other. Though both of them are used in giving the if-then-else conditional functionality to sql statement, they differ much from each other, this video will walk through each of the difference with appropriate examples. If you want more such videos of exciting and amazing 'difference between' concepts, check out the links below : char and varchar2 : https://youtu.be/039qzwjWf4k replace and translate : https://youtu.be/HKYF77BGzOE procedure and function : https://youtu.be/q3LmOenL120 in and exists : https://youtu.be/REX4IjRYlFw rank and dense_rank : https://youtu.be/WGSX998hZ9M delete and truncate : https://youtu.be/u76wMm2byXo %type and %rowtype : https://youtu.be/MlLUFeZ_3eM
Views: 10849 Kishan Mashru
17 Oracle 11g  Основы SQL - Выборка данных с использованием усложнённых подзапросов
 
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Модуль 17. Выборка данных с использованием усложнённых подзапросов • Многостолбцовые подзапросы • Использование скалярных подзапросов в SQL • Круг проблем, решаемых при помощи коррелированных подзапросов • Модификация и удаление строк при помощи коррелированных подзапросов • Использование операторов EXISTS и NOT EXISTS • Применение предложения WITH
Views: 208 Tech Net
How to connect to an Oracle Database? - Database Tutorial 37
 
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Video 37 - How to connect to a Oracle Database? - Database Tutorial 37 This video explains how to connection to an oracle database. The database, which is Oracle 11g has been installed in a Windows 7 computer.
Views: 112513 Sam Dhanasekaran
Como usar el EXISTS en SQL | Curso SQL Server - #60
 
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Ayúdanos a crecer, comparte, dale like y suscribete al canal! ►[http://goo.gl/TZEYAO]◄ GRACIAS POR TU APOYO Y TU LIKE En este vídeo veremos como utilizar el exists para identificar si el mismo dato esta en dos tablas. EXISTS simplemente verifica si la consulta interna arroja alguna fila. Si lo hace, entonces la consulta externa procede. De no hacerlo, la consulta externa no se ejecuta, y la totalidad de la instrucción SQL no arroja nada. ▼Que es Tutoriales y más? ►Somos una comunidad que crece cada vez mas! Nuestro tema principal es la programación pero también nos interesa compartir sobre cualquier cosa que tenga que ver con tecnología e informatica! ►Cursos, tutoriales, reviews, gameplays y hasta algo de música es parte de lo que podrás encontrar si visitas nuestro canal! ► Ayúdanos a Subtitular este y otros videos para llegar a más personas: https://goo.gl/kEr6xW ▼Nuestros Cursos: ►SQL Server: https://goo.gl/7vMQnD ►C#: https://goo.gl/0NZeqM ►Java: https://goo.gl/VhFRR4 ►VB .Net: https://goo.gl/Gwh6O4 ►VBA: https://goo.gl/TxsZz3 ►Iniciándose en la programación: https://goo.gl/dHcmnM ►►Más cursos y vídeos en el canal!◄◄ ▼Encuentranos aquí: ►Facebook: https://goo.gl/iqIZMn ►Grupo de programadores en Facebook: https://goo.gl/sTvbFz ►Twiter: https://goo.gl/WJRoKR ►Blog: https://goo.gl/EOglPi ▼Tal vez te interese! ►Gana $$$ con tu canal [VISO]: http://bbtv.go2cloud.org/SHQK ►App del canal para tu navegador: https://goo.gl/Czkl9C ►Donativos: http://goo.gl/us1GDG ▼Código y más! ►Repositorio del Query del curso de SQL Server: https://goo.gl/LSig71
Views: 2319 Tecnología Binaria;
Curso Oracle Sql - Video 21 - Subconsultas
 
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Subconsultas. Operador Exist y Not Exist. Cláusula With. Funciones de agrupación en subconsultas.
EXISTS Condition in Oracle Database
 
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#Exists oracle exists vs in, if exists in oracle, oracle not exists vs not in, difference between in and exists in oracle, case when exists oracle, oracle check if record exists, if not exists in oracle, oracle update where exists
Views: 9 Adam Tech
create and use function in sql. not exist PART 8
 
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sql tutorial for beginners. not exists function in sql. part 8 create and use function in sql. not exists sql statement, how to write an sql statement of the records of a table where not exist in other table (child table) in sql statement. sql tutorial for beginners you can use this statement in sql view, sql stored procedure, sql function. Connect with me https://www.facebook.com/groups/swiftlearn/ https://twitter.com/swiftlearn All playlist c# tutorial for beginners Swift Learn https://www.youtube.com/playlist?list=PLINPYKVRUHyXoPn0-4NIdFn8RrQQDdAki c# linq to sql tutorial Swift Learn https://www.youtube.com/playlist?list=PLINPYKVRUHyVsic1g2CUn2pR5aKjNd3Nc asp.net tutorial for beginners full Swift Learn https://www.youtube.com/playlist?list=PLINPYKVRUHyUjmHrYfAq1l8pe5eXhkZqF crystal report c# in sql Swift Learn https://www.youtube.com/playlist?list=PLINPYKVRUHyWao6CC3Eu0srQxJjgkfLsm SQL Tutorial for beginners full Swift Learn https://www.youtube.com/playlist?list=PLINPYKVRUHyVOv6mx6xU7HEgGcfLk4Kmz
Views: 98 Swift Learn

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