Contrary of ISNULL() ?

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Contrary of ISNULL() ?

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sascha-1062534

Posted Thursday, September 03, 2009 5:03 AM

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Hello everyone,

how can I display something when a specific field value is not null ?

That of course wont work:
SELECT *, ISNOTNULL(Authordate,'Last Upload: ') + ISNULL(Authordate,'') From Documents

Any suggestions ?

Sascha

Post #782069

GilaMonster

Posted Thursday, September 03, 2009 5:31 AM

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SELECT &lt; Column list &gt;,
 CASE WHEN AuthorDate IS NULL THEN '' ELSE 'Last Upload: ' + CONVERT(VARCHAR(30), AuthorDate, &lt; Appropriate formatting code &gt;) END
FROM Documents

Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #782082

justanewone

Posted Thursday, September 03, 2009 7:21 AM

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Same principal different code provided CONCAT_NULL_YIELDS_NULL is ON.

SELECT ISNULL('Last Upload: ' + CONVERT(VARCHAR, AuthorDate+'', 112), '')
FROM Documents

Dave

Post #782141

sascha-1062534

Posted Saturday, September 05, 2009 1:43 AM

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Thank you both for your fast help, justanewone i used your solution its works fine ! Smile

Sascha

Post #783276

Jeff Moden

Posted Saturday, September 05, 2009 9:49 AM

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how can I display something when a specific field value is not null ?

I see the examples of code folks gave you but they aren't really required. If the field is NOT null, it will display... no? Most systems will display a NULL as a blank and don't require a conversion to a blank or empty string. You'll save clock cycles in the process. Wink

--Jeff Moden

"RBAR is pronounced "ree-bar" and is a "Modenism" for "Row-By-Agonizing-Row".

First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column."

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Post #783344

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