RE: SQL and V5R1

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Let me try translating the article.

Often times what people did was create an externally defined
datastructure, based on the file.  Then instead of
Select fld1, fld2 into :fld1, :fld2 ...
They would do
Select * into :myds...
With the belief that this would insulate them from record format level
checks.  And it did - for awhile.  With the understanding that all new
fields were added to the end of the list.  And if a field size changed,
truncation may occur.

Now, you can still do the externally defined data structure, but, do NOT
do the
SELECT * ...
Instead, select just the fields you want.  Truncation may still occur, if
the field size changes (and you don't recompile).  But if fields are added
your program won't go casters up.  Deleting fields are a different
story...

Yes SQLSTT is the ANSI standard.  Not only that, but you do get more
granular information from SQLSTT, and more consistent.

For example, go the following web site and look up SQLSTT of 01503:
http://publib.boulder.ibm.com/iseries/v5r2/ic2924/info/rzala/rzalafinder.htm
You'll see two possible values for SQLCOD:  +000 and +030.  I suspect that
on preV5 machines you'll get +000.  On V5 you'll get +030.


Rob Berendt
--
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
Benjamin Franklin




jpcarr@tredegar.com
Sent by: midrange-l-admin@midrange.com
11/01/2002 11:24 AM
Please respond to midrange-l

        To:     midrange-l@midrange.com
        cc:
        Fax to:
        Subject:        RE: SQL and V5R1



Ya,  I tried it just after I posted it.

I just got this back from Kent.

opps -  http://www.iseries.ibm.com/db2/sql0030.htm

John

------------------------------------------------
> From: jpcarr@tredegar.com
>
> Yes, this website discusses:
>
> http://www.iseries.ibm.com/developer/db2/sql0030.htm

This URL doesn't resolve.





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