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<sasmita>
posted
Hi,
How do i specify NULL values so that whenever there is a database column with NULL vales it gets reflected in the report ?

The following is a piece of the filter that i have put in Maintain langauage, but its not picking up NULL values from the database.

'AND TRIM(A.THRD_PRTY_I) IN (' | '''' || 'N' || '''' | ',' | '''' || NULL || '''' | ')'

Please help.
 
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<toby mills>
posted
Hi Sasmita

Thankfully I don't have to mess with NULLs that much. I think you're close though.

Try getting away from putting 'NULL' in your IN list and use the keyword MISSING (no quotes as this is not a literal) instead. See if that works for you.

It would work on a straight equality test I think, but I'm not sure about whether or not NULLs are preserved from the TRIM function, and I can't say for sure that I've used it in an IN list. If the IN list doesn't work, you might be able to fall back to older syntax of using

WHERE THRD_PRTY_I EQ MISSING OR 'N'.

Good luck!

-Toby
 
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Francis Mariani
Expert
posted Hide Post
I think the syntax would be

WHERE THRD_PRTY IS MISSING OR THRD_PRTY EQ 'N'
 
Posts: 10577 | Location: Toronto, Ontario, Canada | Registered: April 27, 2005Report This Post
Leah
Virtuoso
posted Hide Post
We had to convert all our MISSING checks for short path type joins in our DB2 environment to the form that Francis used or close using 'EQ' instead of 'IS'. We used to say

WHERE THRD_PRTY EQ 'N' OR MISSING

NOW due to the SQL generated for the DB2 giving an error (version 5.3.x) we changed it to

WHERE THRD_PRT EQ 'N' OR THRD_PRTY EQ MISSING

using your terms.
 
Posts: 1317 | Location: Council Bluffs, IA | Registered: May 24, 2004Report This Post
<toby mills>
posted
It is best to seperate your OR into two different conditions as you guys are doing.

I'm old school when the OR to seperate a list was the norm. Now though, I'd say that's a better syntax.

-Toby
 
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