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Contrary of ISNULL() ?


Contrary of ISNULL() ?

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sascha-1062534
sascha-1062534
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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
GilaMonster
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SELECT < Column list >,
CASE WHEN AuthorDate IS NULL THEN '' ELSE 'Last Upload: ' + CONVERT(VARCHAR(30), AuthorDate, < Appropriate formatting code >Wink END
FROM Documents




Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

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justanewone
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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
sascha-1062534
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Thank you both for your fast help, justanewone i used your solution its works fine ! :-)

Sascha
Jeff Moden
Jeff Moden
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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. ;-)

--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.
Although they tell us that they want it real bad, our primary goal is to ensure that we dont actually give it to them that way.
Although change is inevitable, change for the better is usually not.
Just because you can do something in PowerShell, doesnt mean you should. Wink

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