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SQL Joins Tutorial for Beginners - Inner Join, Left Join, Right Join, Full Outer Join
 
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Learn how to create SQL Joins. The first 10 minutes teach you the basics. Inner Join, Left Outer Join, Right Outer Join, and Full Outer Join. The second 10 minutes show you are few techniques that will help you as you start building joins. READ THE ORIGINAL ARTICLE WITH THE TABLE SCRIPS http://www.sqltrainingonline.com/sql-joins-tutorial-for-beginners/ YOUTUBE NEWS UPDATES http://www.youtube.com/user/sqltrainingonline VISIT SQLTRAININGONLINE.COM FOR TONS MORE VIDEO NEWS & TIPS http://www.sqltrainingonline.com SUBSCRIBE FOR OTHER SQL TIPS AND NEWS! http://www.youtube.com/subscription_center?add_user=sqltrainingonline SUBSCRIBE TO OUR EMAIL LIST! http://www.sqltrainingonline.com LET'S CONNECT! Facebook: http://facebook.com/SQLTrainingOnline Twitter: http://twitter.com/sql_by_joey Linkedin: http://linkedin.com/in/joeyblue SQLTrainingOnline: http://www.sqltrainingonline.com
Views: 132615 Joey Blue
Left Outer Join in Oracle | Right Outer Join | full Outer Join|  Oracle Tutorials | Oracle Training
 
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This video shows you how to create outer joins in oracle and with clear examples
SQL Server join :- Inner join,Left join,Right join and full outer join
 
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For more such videos visit http://www.questpond.com Also watch Learn Sql Queries in 1 hour :- https://www.youtube.com/watch?v=uGlfP9o7kmY 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 four important concepts Inner joins,Left join,Right join and full outer joins. 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: 845377 Questpond
SelectTec | Aula Nº 38 | Oparador Join - Inner Join - Left Join - Right Join - Full Join  - Oracle
 
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SELECT columns FROM table1 INNER JOIN table2 ON table1.column = table2.column; ELECT columns FROM table1 LEFT JOIN table2 ON table1.column = table2.column; SELECT columns FROM table1 RIGHT JOIN table2 ON table1.column = table2.column; SELECT columns FROM table1 FULL JOIN table2 ON table1.column = table2.column;
Views: 1257 SelectTec
SQL Aggregation queries using Group By, Sum, Count and Having
 
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From SQL Queries Joes 2 Pros (Vol2) ch4.1. Learn up to write aggregated queries.
Views: 169023 Joes2Pros SQL Trainings
How to Build a SQL Left Join Query
 
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This is a video tutorial on how to create and execute a SQL Left Join query. More guides and tutorials: http://www.itgeared.com/.
Views: 22233 itgeared
Работа с SQL JOIN (NATURAL JOIN, LEFT and RIGHT JOIN)
 
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Работа с SQL JOIN^ NATURAL JOIN LEFT JOIN RIGHT JOIN INNER JOIN
UPDATE STATEMENT WITH JOIN IN ORACLE SQL
 
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This video demonstrates how user can update data of a particular table(t1), based on the join condition with other table(t2). So it would be a easy way to ditch the for-loop, and check for the condition every time. What was to be achieved from the for-loop can be achieved with a single simple update statement. A simple trick to update data in table based on some conditional data in some another table, would help you to increase the performance of your code massively. For ex : UPDATE TABLE1 t1 SET COL1 = (SELECT COL FROM TABLE2 t2 where t1.col = t2.col);
Views: 3239 Kishan Mashru
What to choose for performance   SubQuery or Joins   Part 62
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2013/01/what-to-choose-for-performance.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-62-what-to-choose-for-performance.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 What to choose for performance - SubQuery or Joins According to MSDN, in sql server, in most cases, there is usually no performance difference between queries that uses sub-queries and equivalent queries using joins. For example, on my machine I have 400,000 records in tblProducts table 600,000 records in tblProductSales tables The following query, returns, the list of products that we have sold atleast once. This query is formed using sub-queries. When I execute this query I get 306,199 rows in 6 seconds Select Id, Name, Description from tblProducts where ID IN ( Select ProductId from tblProductSales ) At this stage please clean the query and execution plan cache using the following T-SQL command. CHECKPOINT; GO DBCC DROPCLEANBUFFERS; Go DBCC FREEPROCCACHE; GO Now, run the query that is formed using joins. Notice that I get the exact same 306,199 rows in 6 seconds. Select distinct tblProducts.Id, Name, Description from tblProducts inner join tblProductSales on tblProducts.Id = tblProductSales.ProductId Please Note: I have used automated sql script to insert huge amounts of this random data. Please watch Part 61 of SQL Server tutorial, in which we have discussed about this automated script. According to MSDN, in some cases where existence must be checked, a join produces better performance. Otherwise, the nested query must be processed for each result of the outer query. In such cases, a join approach would yield better results. The following query returns the products that we have not sold atleast once. This query is formed using sub-queries. When I execute this query I get 93,801 rows in 3 seconds Select Id, Name, [Description] from tblProducts where Not Exists(Select * from tblProductSales where ProductId = tblProducts.Id) When I execute the below equivalent query, that uses joins, I get the exact same 93,801 rows in 3 seconds. Select tblProducts.Id, Name, [Description] from tblProducts left join tblProductSales on tblProducts.Id = tblProductSales.ProductId where tblProductSales.ProductId IS NULL In general joins work faster than sub-queries, but in reality it all depends on the execution plan that is generated by SQL Server. It does not matter how we have written the query, SQL Server will always transform it on an execution plan. If sql server generates the same plan from both queries, we will get the same result. I would say, rather than going by theory, turn on client statistics and execution plan to see the performance of each option, and then make a decision. In a later video session we will discuss about client statistics and execution plans in detail.
Views: 86598 kudvenkat
Inner Join, Left Join, Right Join -  MYSQL
 
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Basic keywords explanation with example in MYSQL Workbench i.e Joins.
Views: 37705 Gattu Guntur
SQL: Understanding the JOIN clause in the SELECT statement
 
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This screencast introduces table joins, including differences between SQL 89 and SQL 92 join syntax. The various join types such as natural (inner) joins and left/right/full outer joins, and cross joins.
Views: 145040 Michael Fudge
How to Join 3 tables in 1 SQL query
 
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Get your first month on the Joes 2 Pros Academy for just $1 with code YOUTUBE1. Visit http://www.joes2pros.com Offer expires July 1, 2015 From the newly released 2 Disc DVD set (SQL Queries Joes 2 Pros Vol2) this video shows how to join 3 tables in 1 query.
Views: 251249 Joes2Pros SQL Trainings
Oracle INNER JOIN, LEFT JOIN, RIGHT JOIN - krumony
 
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Oracle INNER JOIN, LEFT JOIN, RIGHT JOIN - krumony
Views: 28 Mony HO
SQL Inner Join Multiple Tables with SUM Tutorial - SQL 2008/2012/2016/2017
 
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Use inner joins with multiple tables to create reports. Uses aliases, and the SUM aggregate function to demonstrate the flexibility of the join statement. Get the SQL script to create the database and run the exercies in the video here: https://www.qewbi.com/sql/scripts/qewbijoins.zip
Views: 136018 Edward Kench
TIPOS DE CONSULTA JOINS | SELECT INNER JOIN | SQL
 
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Hola queridos suscriptores, tenemos un nuevo video mostrando los tipos de joins como: Inner Join, Right Join, Left Join y Full Join. ¿Como utilizar join en select? Une tus consultas SELECT con los diferentes Joins que te ofrece sql, de acuerdo al gestor de base de datos. *Esperamos que te sea útil, ya que nuestro objetivo es compartir conocimientos ;) #SomosSistemas #ComparteYAprende Suscribete: https://www.youtube.com/channel/UCjD7... Siguenos en Facebook: https://www.facebook.com/somos.sistemas Únete a nuestro grupo Fb: https://www.facebook.com/groups/somos... Visita nuestro sitio web: http://somossistemas.org/ Twittea con nosotros: https://twitter.com/SomosSist Dale un +1: https://plus.google.com/u/2/b/1159723... Escribenos a: [email protected]
Views: 20931 Somos Sistemas Oficial
Joins in Oracle (SQL) Explained in detail with practical examples
 
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The video demonstrates what are the different types of joins and who they work in SQL. The tutorial is a little elaborate to make sure that you understand different kind of joins and where you should use which kind of join. The 5 Kind of joins explained are. 1. Inner join (Join or simple join) :- Rows that are common to both tables are returned as the output. 2. Left Outer join (Left join):- Returns all rows from the left table along with matching rows from the right table 3.Right Outer join (Right join):- Returns all rows from the right table along with matching rows from the left table 4.Full outer join (Full join) :- Returns all the records when there is a match in either left or right table. 5. Cartesian Join : (Join with no where condition)also known as a Cartesian product, is a join of every row of one table to every row of another table.
Views: 6861 Tech Coach
SQL tutorial 28: Left Outer Join By Manish Sharma / RebellionRider
 
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SQL Tutorial Include Left Outer Join Syntax explanation Left Outer Join With ON clause Left Outer Join With USING clause. Website: http://www.RebellionRider.com Previous tutorial (Right Outer Join): http://youtu.be/aiiDEzvkMRk Tool used in this tutorial is SQL Developer. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 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 Sharma from RebellionRider.com
Views: 50186 Manish Sharma
Displaying Data from Multiple Tables Using Joins - Oracle SQL Developer
 
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This video covers the following topics: - Joining tables using an equijoin - Performing outer and self-joins - Adding conditions
Views: 2695 MrFphunter
¿Cómo funciona INNER JOIN, LEFT JOIN, RIGHT JOIN y FULL JOIN?
 
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Video explicativo sobre el funcionamiento de las cláusulas JOIN en SQL. En este caso los scripts se corresponden con SQL Server, pero funciona de la misma forma para los distintos gestores de bases de datos relacionales, como MySQL, PostgreSQL, etcétera. Visita nuestra web: https://programacionymas.com/ ***** Síguenos en las redes sociales: Twitter ► https://twitter.com/programacionym Facebook ► https://www.facebook.com/programacionymas Suscríbete a nuestro canal: http://bit.ly/SuscribirmePYM ***** Si tienes alguna duda puedes dejar un comentario. Además recuerda dar like y compartir el video. Gracias!
Views: 62138 Programación y más
Oracle Join Tables تعليم أوراكل
 
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by Mohamed El Desouki - محمد الدسوقى [email protected] Tel :00966 553450836 جامعة سلمان بن عبد العزيز - السعودية - الخرج How to select data from more than one table using Join. كيفية الربط بين أكثر من جدول 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 Like '%' Like '_' select where Like Join Tables inner join equi join
SQL для начинающих. Пример объединения трех и более таблиц в SQL и БД запросом SELECT JOIN
 
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Операция JOIN очень мощная, но довольно-таки ресурсоемкая штука, без объединения таблиц нам бы не было смысла нормализовывать отношения до второй нормальной формы или до третьей нормальной, конечно, мы немного утрируем, но операции объединения таблиц очень облегчают нам работу с базами данных. Мы уже видели на примерах INNER JOIN, CROSS JOIN и LEFT JOIN, как объединяются две таблицы, а теперь давайте посмотрим: как с помощью JOIN объединить три и более таблиц в одну. На самом деле всё очень просто, сперва пример объединения трех SQL таблиц в одну с помощью INNER JOIN. -- можно комбинировать вместе INNER JOIN, LEFTT JOIN и CROSS JOIN это обусловлено тем, что все действия по объединению нескольких таблиц делаются библиотекой SQLite3 по порядку (можно представить, что JOIN – это операторы сложения). -- сначала объединятся первых две таблицы и получится результирующая, после чего результирующая таблица будет объединена с третьей таблицей и так можно до бесконечности, главное, чтобы ваши таблицы были связаны значениями. Рубрика SQLite на сайте: http://zametkinapolyah.ru/zametki-o-mysql/sqlite/ Текстовая версия: http://zametkinapolyah.ru/zametki-o-mysql/obedinenie-tablic-v-sql-i-bazax-dannyx-sqlite-join-i-select.html Паблик блога в ВК: https://vk.com/zametkinapolyah Тематическая группа в ВК: https://vk.com/zametki_bd Помощь проекту: WMR: R288272666982 WMZ: Z293550531456 Яндекс.Деньги: 410011531129223
PD - SELECT com LEFT JOIN no SQL Server 2012 ( como utilizar LEFT JOIN no SELECT )
 
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Professor Drausio Henrique Chiarotti PD - SELECT com LEFT JOIN no SQL Server 2012 ( como utilizar LEFT JOIN no SELECT ) Aula: ensina a utilizar o LEFT JOIN no SQL Server 2012. A aula utiliza três tabelas, tblPessoa, tblPessoaTelefone e tblPessoaEndereco. Assista também: Criar Base de Dados (Create Database) no Microsoft SQL Server: http://youtu.be/ETtBf2AumUw Criar Tabela (Create Table) com Script SQL no Microsoft SQL Server: http://youtu.be/kKFJkFxG8vA Criar Tabela Utilizando Diagrama (Designer) no SQL Server: http://youtu.be/PmdKMDaQRhA 1ª Temporada: http://www.youtube.com/watch?v=eFydylVZ0cw&feature=c4-overview-vl&list=PLwFf8gSUEopzWGncRvk87h3uA4KWNH7jV Facebook: http://www.facebook.com/ProfessorDrausio Envie sugestões para a temporada: [email protected]
Views: 11089 professordrausio
Oracle SQL Join Tutorials
 
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Oracle SQL Join Tutorials. Different types of joins and examples. For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=4 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 102173 Oresoft LWC
SQL Join
 
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Начиная разбираться в SQL многие сталкиваются с проблемой сложности понимания различия между разными JOIN-ами в этом языке. В этом видео уроке я объясняю: 1) Что такое JOIN. 2) Различие между CROSS JOIN, INNER JOIN, LEFT JOIN, RIGHT JOIN, и FULL JOIN. Также показываю как реализовать FULL JOIN в базах данных, которые не предоставляют такую конструкцию.
Views: 57807 Volodya Mozhenkov
Oracle SQL: Understanding Multiple Table Joins
 
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http://www.informit.com/store/oracle-sql-livelessons-video-training-downloadable-9780134275741?WT.mc_id=Social_YT Oracle SQL: Understanding Multiple Table Joins is an excerpt from Oracle SQL LiveLessons Video Training -- 6+ Hours of Video -- Oracle SQL LiveLessons Video Training covers the basics of the Oracle SQL programming language. This course covers both Oracle standard SQL and the ANSI approved SQL that Oracle supports. The focus of the course is to give students working knowledge of the Oracle SQL language and at the conclusion of this course, students should be able to query the Oracle database. Description In this LiveLessons video course, Oracle ACE Director Dan Hotka will teach you how to use the SQL query language, interpret business questions into SQL code, and how to use Where clauses sub-queries, complex table join conditions, and how to create table objects and populate tables with data. Students will also learn how to access Oracle from Microsoft products such as Excel. In addition, they will learn how analytical SQL can be used for business analysis. This course will use both Toad and SQL Developer for SQL examples. About the Instructor Dan Hotka is a training specialist and an Oracle ACE director who has more than 37 years in the computer industry and more than 31 years of experience with Oracle products. His experience with the Oracle RDBMS dates back to the Oracle V4.0 days. Dan enjoys sharing his knowledge of the Oracle RDBMS. Dan is well published with 12 Oracle books and well over 200 published articles. He is also the video author for Oracle SQL Performance Tuning for Developers LiveLessons and Oracle PL/SQL Programming Fundamentals. He is frequently published in Oracle trade journals, regularly blogs, and speaks at Oracle conferences and user groups around the world. Visit his website at www.DanHotka.com. Skill Level Beginner Learn How To Use the SQL query language Interpret business questions into SQL code Understand Oracle standard SQL and ANSI SQL Work with Where clauses, sub-queries, and complex table join conditions Create table objects and populate these tables with data Access Oracle from Microsoft products such as Excel Use analytical SQL, useful for business analysts Who Should Take This Course Students who are new to SQL and want to learn Oracle SQL Course Requirements Basic knowledge of what is a database, especially RDBMS and what is a computer programming language http://www.informit.com/store/oracle-sql-livelessons-video-training-downloadable-9780134275741?WT.mc_id=Social_YT
Views: 14114 LiveLessons
SQL JOINing Multiple Tables
 
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Jamie King of Neumont University demonstrating how to join several tables together.
Views: 136888 Jamie King
Ejemplo simple de SELECT con JOIN de tablas
 
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Ejemplo simple sobre la selección de datos desde más de una tabla, haciendo combinaciones tanto internas como externas (INNER, OUTER JOIN). Adicionalmente, comparar la notación SQL ANSI con la notación ORACLE
Views: 134546 EscuelaITbbdd
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: 11761 Kishan Mashru
Querying Multiple Tables with SQL
 
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Demonstration of how to query two or more tables with SQL Server.
Views: 32180 Larry Domine
Oracle Database11g tutorials 5:  how to retrieve Data Using SQL SELECT statement || SQL tutorials
 
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This SQL tutorial and Oracle database 11g tutorial for beginners will show how to retrieve data using SQL SELECT statement. Tool used in this tutorial is SQL developer. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 You can download the Script which is used in this SQL tutorial from this link https://copy.com/yDQ46Tb64efm Contacts Email [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/RebellionRider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from The Code makers
Views: 194206 Manish Sharma
22 - T-SQL - JOINS e INNER JOIN - Selecionar dados de duas ou mais tabelas - SQL Server
 
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TSQL - JOINS e INNER JOIN - Selecionar dados de duas ou mais tabelas - SQL Server Neste vídeo vamos mostrar como é possível combinar dados de duas ou mais tabelas relacionadas em uma consulta utilizando a cláusula INNER JOIN, além de outros tipos de JOINS, no SQL Server. Contribua com a Bóson Treinamentos!: Como contribuir: http://www.bosontreinamentos.com.br/contribuir/ Por Fábio dos Reis Bóson Treinamentos: http://www.bosontreinamentos.com.br Facebook: https://www.facebook.com/bosontreinamentos/ Pinterest: https://br.pinterest.com/bosontreina/ Twitter: https://twitter.com/bosontreina Instagram: https://www.instagram.com/bosontreinamentos/ LInkedin: https://www.linkedin.com/in/f%C3%A1bio-dos-reis-06ba192a/ Outros projetos do autor: Diário do Naturalista: http://www.diariodonaturalista.com.br
Views: 93423 Bóson Treinamentos
Left Outer Join operation with Example | Database Management System
 
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#LeftOuterJoinJoin #SQlDBMS #FreeEducationGATE
Views: 14219 Gate Smashers
Oracle joins in telugu | Inner join | Left join | Right Join | Full Join | Cross Join
 
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#KOTHA_ABHISHEK http://htmlintelugu1.blogspot.com http://cssintelugu1.blogspot.com http://javascriptintelugu1.blogspot.com http://sqlintelugu1.blogspot.com http://javaintelugu1.blogspot.com
Views: 6309 KOTHA ABHISHEK
SQL - Subselect / Subquery + LEFT JOIN (parte 4)
 
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Mais um pouco sobre subselect/subquery e left join
Views: 2096 TADS - UNINOVE
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: 203241 kudvenkat
Learn Oracle | How to Use Joins, Cross Join, Cartesian Product in SQL
 
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Pebbles present, Learn Oracle 10g with Step By Step Video Tutorials. Learn Oracle 10g Tutorial series contains the following videos : Learn Oracle - History of Oracle Learn Oracle - What is Oracle - Why do we need Oracle Learn Oracle - What is a Database Learn Oracle - What is Grid Computing Learn Oracle - What is Normalization Learn Oracle - What is ORDBMS Learn Oracle - What is RDBMS Learn Oracle - Alias Names, Concatenation, Distinct Keyword Learn Oracle - Controlling and Managing User Access (Data Control Language) Learn Oracle - Introduction to SQL Learn Oracle - Oracle 10g New Data Types Learn Oracle - How to Alter a Table using SQL Learn Oracle - How to Create a Package in PL SQL Learn Oracle - How to Create a Report in SQL Plus Learn Oracle - How to Create a Table using SQL - Not Null, Unique Key, Primary Key Learn Oracle - How to Create a Table using SQL Learn Oracle - How to Create a Trigger in PL SQL Learn Oracle - How to Delete Data from a Table using SQL Learn Oracle - How to Drop and Truncate a Table using SQL Learn Oracle - How to Insert Data in a Table using SQL Learn Oracle - How to open ISQL Plus for the first time Learn Oracle - How to Open SQL Plus for the First Time Learn Oracle - How to Update a Table using SQL Learn Oracle - How to use Aggregate Functions in SQL Learn Oracle - How to use Functions in PL SQL Learn Oracle - How to use Group By, Having Clause in SQL Learn Oracle - How to Use Joins, Cross Join, Cartesian Product in SQL Learn Oracle - How to use Outer Joins (Left, Right, Full) in SQL Learn Oracle - How to use the Character Functions, Date Functions in SQL Learn Oracle - How to use the Merge Statement in SQL Learn Oracle - How to use the ORDER BY Clause with the Select Statement Learn Oracle - How to use the SELECT Statement Learn Oracle - How to use the Transactional Control Statements in SQL Learn Oracle - How to use PL SQL Learn Oracle - Data Types in PL SQL Learn Oracle - Exception Handling in PL SQL Learn Oracle - PL SQL Conditional Logics Learn Oracle - PL SQL Cursor Types - Explicit Cursor, Implicit Cursor Learn Oracle - PL SQL Loops Learn Oracle - Procedure Creation in PL SQL Learn Oracle - Select Statement with WHERE Cause Learn Oracle - SQL Operators and their Precedence Learn Oracle - Using Case Function, Decode Function in SQL Learn Oracle - Using Logical Operators in the WHERE Clause of the Select Statement Learn Oracle - Using Rollup Function, Cube Function Learn Oracle - Using Set Operators in SQL Learn Oracle - What are the Different SQL Data Types Learn Oracle - What are the different types of Databases Visit Pebbles Official Website - http://www.pebbles.in Subscribe to our Channel – https://www.youtube.com/channel/UCNNjWVsQqaMYccY044vtHJw?sub_confirmation=1 Engage with us on Facebook at https://www.facebook.com/PebblesChennai Please Like, Share, Comment & Subscribe
Views: 3776 Pebbles Tutorials
joins in SQL with examples [hindi]
 
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This video explains what are joins and types of joins with the help of examples.
Views: 70393 kwl zerotwonine
Apprendre SQL | jointure sql Inner join | left join | right join | natural join
 
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cette vidéo est consacré aux jointures en langage sql, dans laquelle on va abordé tout type de jointure tel que INNER JOIN, LEFT JOIN et RIGHT JOIN, sachant que l'explication est on arabe "darija marocaine". base de données MySQL structure et données : https://www.dropbox.com/s/rrthj20c2jjzjlx/FORMATION_SQL.rar?dl=0 site : e-learndev.com
Views: 14194 Mohamed IDBRAHIM
SQL Tutorial 12 Advanced Subqueries returning multiple columns
 
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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: 56568 Telusko
Part 9   Difference between inner join and left join
 
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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-9-difference-between-inner-join.html This is one of the very common sql server interview question. Different JOINS in SQL Server are discussed in detail in Part 12 of SQL Server tutorial for beginners video series. Let's understand the difference with an example. INNER JOIN returns only the matching rows between the tables involved in the JOIN. Notice that, Pam employee record which does not have a matching DepartmentId in departments table is eliminated from the result-set. SELECT EmployeeName, DepartmentName FROM Employees INNER JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID LEFT JOIN returns all rows from left table including non-matching rows. Notice that, Pam employee record which does not have a matching DepartmentId in departments table is also included in the result-set. SELECT EmployeeName, DepartmentName FROM Employees LEFT JOIN Departments ON Employees.DepartmentID = Departments.DepartmentID In general there could be several questions on JOINS in a sql server interview. If we understand the basics of JOINS properly, then answering any JOINS related questions should be a cakewalk. What is the difference between INNER JOIN and RIGHT JOIN INNER JOIN returns only the matching rows between the tables involved in the JOIN, where as RIGHT JOIN returns all the rows from the right table including the NON-MATCHING rows. What is the difference between INNER JOIN and FULL JOIN FULL JOIN returns all the rows from both the left and right tables including the NON-MATCHING rows. What is the Difference between INNER JOIN and JOIN There is no difference they are exactly the same. Similarly there is also no difference between LEFT JOIN and LEFT OUTER JOIN RIGHT JOIN and RIGHT OUTER JOIN FULL JOIN and FULL OUTER JOIN
Views: 114483 kudvenkat
SQL Left Outer Join with Example in Oracle 11g Database(Hindi and English)
 
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SQL Tutorial for Beginners in Hindi and English SQL Left Outer Join with Example in Oracle 11g Database(Hindi and English)
Cross apply and outer apply in sql server
 
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cross apply sql server example sql server outer apply example sql server join table function with parameter sql server inner join table valued function In this video we will discuss cross apply and outer apply in sql server with examples. We want to retrieve all the matching rows between Department and Employee tables. This can be very easily achieved using an Inner Join as shown below. Select D.DepartmentName, E.Name, E.Gender, E.Salary from Department D Inner Join Employee E On D.Id = E.DepartmentId Now if we want to retrieve all the matching rows between Department and Employee tables + the non-matching rows from the LEFT table (Department) This can be very easily achieved using a Left Join as shown below. Select D.DepartmentName, E.Name, E.Gender, E.Salary from Department D Left Join Employee E On D.Id = E.DepartmentId Now let's assume we do not have access to the Employee table. Instead we have access to the following Table Valued function, that returns all employees belonging to a department by Department Id. Create function fn_GetEmployeesByDepartmentId(@DepartmentId int) Returns Table as Return ( Select Id, Name, Gender, Salary, DepartmentId from Employee where DepartmentId = @DepartmentId ) Go The following query returns the employees of the department with Id =1. Select * from fn_GetEmployeesByDepartmentId(1) Now if you try to perform an Inner or Left join between Department table and fn_GetEmployeesByDepartmentId() function you will get an error. Select D.DepartmentName, E.Name, E.Gender, E.Salary from Department D Inner Join fn_GetEmployeesByDepartmentId(D.Id) E On D.Id = E.DepartmentId If you execute the above query you will get the following error Msg 4104, Level 16, State 1, Line 3 The multi-part identifier "D.Id" could not be bound. This is where we use Cross Apply and Outer Apply operators. Cross Apply is semantically equivalent to Inner Join and Outer Apply is semantically equivalent to Left Outer Join. Just like Inner Join, Cross Apply retrieves only the matching rows from the Department table and fn_GetEmployeesByDepartmentId() table valued function. Select D.DepartmentName, E.Name, E.Gender, E.Salary from Department D Cross Apply fn_GetEmployeesByDepartmentId(D.Id) E Just like Left Outer Join, Outer Apply retrieves all matching rows from the Department table and fn_GetEmployeesByDepartmentId() table valued function + non-matching rows from the left table (Department) Select D.DepartmentName, E.Name, E.Gender, E.Salary from Department D Outer Apply fn_GetEmployeesByDepartmentId(D.Id) E How does Cross Apply and Outer Apply work The APPLY operator introduced in SQL Server 2005, is used to join a table to a table-valued function. The Table Valued Function on the right hand side of the APPLY operator gets called for each row from the left (also called outer table) table. Cross Apply returns only matching rows (semantically equivalent to Inner Join) Outer Apply returns matching + non-matching rows (semantically equivalent to Left Outer Join). The unmatched columns of the table valued function will be set to NULL. Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/cross-apply-and-outer-apply-in-sql.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/cross-apply-and-outer-apply-in-sql_8.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: 73574 kudvenkat
Retrieve Data from Multiple tables using LEFT OUTER Join
 
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Retrieve Data from Multiple tables using LEFT OUTER Join
Views: 1153 Abe Samir's Academy
Видеокурс по SQL Essential. Урок 5. Команда JOIN
 
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Ссылка на полный курс - http://itvdn.com/ru/video/sql-essential?utm_source=yb_promo_sqless Редко вся информация, которая нам необходима, находится в одной таблице. Зачастую в реляционных базах данные находятся в разных таблицах и связанны между собой. В этом видеоуроке по SQL Вы изучите команды JOIN, LEFT JOIN, RIGHT JOIN, CROSS JOIN, которые используются для получения данных из связанных таблиц.
Views: 11948 ITVDN
OUTER JOIN in SQL
 
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Join Discussion: http://www.techtud.com/video-lecture/outer-join-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: 22733 Techtud
ORACLE SQL 27: (Left, Right, Full) Outer join
 
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Views: 678 studyandsharevn
Oracle Database11g tutorials 8 || SQL DISTINCT with multiple columns |SQL Distinct with Two columns
 
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This SQL tutorial and Oracle database 11g tutorial for beginners will show how to use SQL DISTINCT keyword with SQL Select clause. This Video is in the continuation of previous video on SQL distinct with one column. In this video we will see How to use SQL distinct with multiple columns and SQL distinct with two columns Tool used in this tutorial is SQL developer. This tutorial series is part of SQL expert exam certification training. If you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts Email [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish From The Code makers
Views: 98611 Manish Sharma