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Instead of OR in WHERE clause
Message
From
03/02/2014 23:00:12
Michel Fournier
Level Extreme Inc.
Petit-Rocher, New Brunswick, Canada
 
General information
Forum:
Microsoft SQL Server
Category:
SQL syntax
Title:
Re: Instead of OR in WHERE clause
Environment versions
SQL Server:
SQL Server 2008
Application:
Web
Miscellaneous
Thread ID:
01593065
Message ID:
01593075
Views:
32
>This query
>
>select * from myTable where Condition1 OR Condition2
>
>is the same as
>
>select * from myTable where Condition1
>UNION
>select * from myTable where Condition2
Is it really faster?

Also, we need to consider that the select line is very big. So, if I have 1000 primary keys, I would have to repeat that line 1000 times.
Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
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