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Transact SQL Tutorial: Pt. 4 - Complex WHERE Clauses Using AND, OR, and Parentheses

   Chapter: SELECT, INSERT, UPDATE and DELETE - Data Manipulation Language
Download! Skill Level: 100 (Beginner)
Duration: 6:15
Size: 6.61MB
Versions/Editions Covered: SQL Server 2005 , SQL Server 2008 , SQL Server 2000
Added/Updated: Mar 20, 2007

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This is video number 3 of a series of 7 masterfully recorded videos about working with the Data Manipulation Language (DML) SELECT statement. This video focuses on a review of the more complex WHERE AND OR clauses and provides real world basic and and complex examples utilizing the Northwind database. Once again the video is so clear and precise that you do not need to know anything about the Northwind database in order to follow this video. You will also find quick explanations of the following items and more within this video:
  • Explanation of understanding how SQL SERVER interprets queries
  • Proper utilization of parenthesis () when writing queries
  • Explanation of why to use parenthesis () in your code
  • Explanation of easily readable code
This video does a wonderful job of detailing out all of the information about the WHERE AND OR clauses. There is no confusion when the author is done. This video is perfect for all who would like to learn more about those clauses or just need a reference whether you are a novice, intermediate user or an advanced TSQL master.

NOTE: This video was reviewed and this description was written by one of our members, Wayne Leiser. Thanks,Wayne!
Tags for this video: And clauses Or Parentheses statements WHERE  
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This video is part of the following video series: "A Lengthy Overview of the SELECT Statement"
This lengthy 7-part series is all about working with the Data Manipulation Language (DML) SELECT statement.Covered in this video are also some simple main sequences of SQL focusing on the statements, requirements and their various uses.

Highlights:
  • Returns from a SELECT statement
  • Introduction to the SELECT, FROM, JOIN, WHERE, GROUP BY, HAVING, ORDER BY statements
  • Basic definition for result sets
  • Intro to the AND / OR clauses
  • Proper utilization of parenthesis () when writing queries
  • Proper use of DISTINCT vs Improper use of GROUP BY
  • When and why to use the HAVING clause
  • Simplistic and complex TOP clause examples

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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11/20/2008 6:01:55 PM