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Transact SQL Tutorial: Pt. 3 - Writing UPDATE Statements That Reference Multiple Tables (Subqueries)

   Chapter: SELECT, INSERT, UPDATE and DELETE - Data Manipulation Language
Download! Skill Level: 300 (Intermediate)
Duration: 10:00
Size: 7.61MB
Versions/Editions Covered: SQL Server 2005 , SQL Server 2008 , SQL Server 2000
Added/Updated: Apr 19, 2007

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This video is part 3 of a 4 part series of videos on the Data Manipulation Language (DML) UPDATE STATEMENT. This video takes the UPDATE STATEMENT to the next level. Just when you thought you could not learn anything else about the UPDATE STATEMENT, Scott Whigham pulls it off again.The topics and information learned from this video include:
  • Assigning a value for the update statement based upon data in a table or a subquery.
  • Basic use of AdventureWorks database
  • Real world examples utilizing transactions with the AdventureWorks database.
  • Proper utilization and syntax with the UPDATE STATEMENT and SET COMMAND.
  • Introduction to Simple Subqueries and proper syntax for that type of subquery.
  • Explanation of the processing sequence and logic behind subqueries.SET COMMAND and subquery triple one rule (scalar value return).
  • Common real world errors when utilizing subqueries and SET COMMANDS
  • Real world examples on proper utilization of setup, writing T-SQL and execution of the UPDATE STATEMENT, SET COMMAND, and the WHERE clause.Introduction to Simple and Correlated Subqueries
  • Examples on Correlated Subqueries
  • Introduction to ANSI/ISO FROM Proprietary Extension
Although Scott does a brilliant job of showing us how to properly write the syntax for a subquery when working with the UPDATE STATEMENT, this video does require a working knowledge of subqueries and the AdventureWorks Database prior to watching.

NOTE: This video description was written by one of our members, Wayne Leiser. Thanks, Wayne!
Tags for this video: BEGIN TRANSACTION DML SET COMMAND Simple subquery Subqueries SUBQUERY T-SQL Transact SQL transact-sql Transactions TSQL UPDATE STATEMENT UPDATE syntax  
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This video is part of the following video series: "An Overview of the UPDATE Statement"
This series will demonstrate to you how to utilize proper syntax and rules when working with the UPDATE statement.

Highlights:
  • Introduction and Explanation of the three SQL Language Classifications
  • DEFAULT DML STATEMENT
  • Open and Completed Transaction Statements
  • Introduction to IF and ELSE statements within Transactions.
  • Proper utilization and syntax with the UPDATE STATEMENT and SET COMMAND.
  • Common Errors in real world uses of SELECT and FROM statements and how to rectify those errors
  • Introduction to JOINS and UPDATES
To view all videos in this series, click here

About the Instructor:
Scott Whigham Scott Whigham is the founder of LearnItFirst.com, one of the web's most extensive video training libraries focusing on technical training. Scott is also an experienced consultant, trainer, and author with more than a decade of hands-on experience working with SQL Server databases, writing and debugging applications using Visual Studio, and performance tuning. Scott designed the architecture (websites, class libraries, and database) for the LearnItFirst.com websites and, most re... (Scott Whigham's full bio can be found on the About the Author page)

   
 
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8/29/2008 1:34:56 AM