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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for November 29th, 2012

Be aware of the three valued logic when NULL gets involved: SQL Server: JOIN vs IN vs EXISTS – the logical difference

Posted by jpluimers on 2012/11/29

Great post: SQL Server: JOIN vs IN vs EXISTS – the logical difference.

Be aware of the three valued logic when NULL gets involved.

EXIST comes closes to what you expect.

And be aware that with IN, you cannod pass one parameter containing more than 1 IN value: sql server 2005 – Passing multiple values for one SQL parameter – Stack Overflow..

–jeroen

Posted in Database Development, Development, SQL, SQL Server, SQL Server 2000, SQL Server 2005, SQL Server 2008, SQL Server 2008 R2, SQL Server 2012, SQL Server 7 | Leave a Comment »

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The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for November 29th, 2012

Be aware of the three valued logic when NULL gets involved: SQL Server: JOIN vs IN vs EXISTS – the logical difference

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