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IFNULL statement in DB2

 
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Vinni

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Joined: 10 Jun 2008
Posts: 3
Location: Hyderabad

PostPosted: Wed Jul 28, 2010 11:42 pm    Post subject: IFNULL statement in DB2
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Hi,

If i have select some columns using the below statement from a table

IFNULL(a.Col_name_1, CHAR(‘ ‘,10)) as name1,
IFNULL(a.Col_name_3, CHAR(‘ ‘,40)) as name2 from table a.

What does the above statement do exactly ? and name1 can be a column name of another table or it should be some other name if yes do i need to declare it ?

Thanks for the help.

vinni.
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dbzTHEdinosauer

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Joined: 20 Oct 2006
Posts: 6968
Location: porcelain throne

PostPosted: Wed Jul 28, 2010 11:57 pm    Post subject:
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IFNULL as explained in the manual

AS column_name as explained in the manual
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Phrzby Phil

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Joined: 31 Oct 2006
Posts: 965
Location: Richmond, Virginia

PostPosted: Thu Jul 29, 2010 1:07 am    Post subject:
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... and both explained by a very simple test.
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