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Discuss content posted by Sunil Chandurkar
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DATETIME Puzzle
33 posts, Page 4 of 4
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DATETIME Puzzle
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Paul White
Paul White
Posted Tuesday, November 22, 2011 5:49 PM
SSChampion
Group: General Forum Members
Last Login: Today @ 4:22 PM
Points: 10,990,
Visits: 10,542
GilaMonster (11/17/2011)
Ola L Martins-329921 (11/17/2011)
The "AND" operator will check against the date-columns seperately - not simultaneously which in the case with "BETWEEN".
Using GREATER THAN and LESS THAN in the above question would actually return all the records.
BETWEEN is completely equivalent to a combination of <= and >=
SomeColumn BETWEEN @Var1 and @Var2 is exactly the same as SomeColumn >= @Var1 and SomeColumn <= @Var2. In fact, the SQL parser converts the BETWEEN into the <= and >= form during parsing (pre-execution)
Interesting side-fact: BETWEEN is not valid in a filtered index definition; you have to expand the condition into >= and <= tests.
Paul White
SQL Server MVP
SQLblog.com
@SQL_Kiwi
Post #1210635
Sunil Chandurkar
Sunil Chandurkar
Posted Monday, November 28, 2011 2:17 AM
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Last Login: Thursday, September 27, 2012 4:24 AM
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Thanks to all who posted comments. I myself got to learn more by reading all the comments.
Post #1212329
Danny Ocean
Danny Ocean
Posted Monday, December 19, 2011 5:22 AM
Ten Centuries
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good question with good expatiation
Keep Learning - Keep Growing !!!
http://growwithsql.blogspot.in
Thanks
Vinay Kumar
Post #1223751
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