RE: SQL null indicator variable in DS

I tend to stay away from null in the database, since it mostly just confuses the $#!+ out of the developers following after...

However, I seem to think that, for a fetch into DS subfields, that the null map must be an array of null indicators. The syntax is something like this:

Exec SQL Fetch Cursor1 Into :myData :myDataNullMap;

I dabbled with null in database a while back and found the level of effort to develop robust implementations, develop a training course and/or example code for self-study, modifications to shop standards and practices, etc. was above the tolerance levels of those affected... An so it goes.

I'm sure I'll get an earful from the "null is good" evangelists, and while I can agree in spirit that it can be beneficial or whatever, I'll stick with COALESCE to convert null values into the equivalent of INZ(*DFT)...

Hopefully, someone with more practical experience can correct and clarify the null map, and how to construct that piece...

Hth,
-Eric DeLong

-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Justin Taylor
Sent: Friday, May 09, 2014 10:26 AM
To: rpg400-l@xxxxxxxxxxxx
Subject: SQL null indicator variable in DS

I have an SQLRPGLE program that's accessing a table with a column that allows nulls. I'm fetching into a DS that's defined via a copybook. The DS includes a 3i 0 field for the null indicator variable. The FETCH NEXT lists each field individually. The SQL precompiler accepts all of the DS fields except the one for the null indicator variable. If I use a locally defined field, it'll take that.

Has anyone else seen this? Just a quirk in the SQL precompiler?
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