Re: RPG SQL and database null values -- RPG400-L

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IFNULL is the same as COALESCE, and it's easier to remember <smile>

Joe

On your SQL...you can specify the IFNULL or COALESCE function to force a valid result if the SQL returns nulls.

Select coalesce(field1,0) from table

The 0 will be returned if the result is null. Works equally well with character or numeric results. Near as I can tell, IFNULL is the same thing.

Steve needles

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Mike Cunningham
Sent: Monday, October 04, 2010 3:39 PM
To: RPG programming on the IBM i / System i
Subject: RPG SQL and database null values

Is there an easy way to deal with null values being read by RPG using embedded SQL? I can't get by the -305 error when there is a null value coming in. ALWNULL(*INPUTONLY) has already been tried and did not help. I do not need to know when a field is null in this application. Getting the default value for the field type will be OK in my situation. Is the null indicator variable the only way?

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