Re: SQL update a numeric by replacing 2 digits with a constant

Alan,

There is an implicit casting in SQL, so this is allowed.

Dan: I ran a small test with our (V5R3) system and it worked perfectly.
Unless this capability (that of implicit casting) has changed since then, it
would point out to *maybe* a missing PTF. Check your Group PTFS (especially
those regarding DB2).

Regards,

Luis Rodriguez
IBM Certified Systems Expert — eServer i5 iSeries
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On Tue, Dec 21, 2010 at 1:08 PM, Alan Campin <alan0307d@xxxxxxxxx> wrote:

I don't see how this would work at all if CMCUST is a packed 9,0. I would
have converted CMCUST to a string, then done the substr and then cast the
result back to a dec 9,0. Based on substringing a packed 9,0 I would guess
the results could be anything.

On Tue, Dec 21, 2010 at 10:18 AM, Dan <dan27649@xxxxxxxxx> wrote:

The messed-up data I mentioned in my previous thread several minutes ago
was
caused by:

Update Lib1/Customer Set cmcust = '50' || substr( cmcust , 3, 7 )

cmcust is a 9.0 packed decimal. The goal is to REPLACE the first two
digits
of cmcust with 50.

In another library I used this in, the update worked as expected.

However,

for reasons unknown to me, the update in this library replaced the 3rd &
4th
digits of cmcust with 50. Any ideas?

FWIW, we just upgraded to V6R1 with cum PTF TL60215 applied. I've been

out

of the OS admin side of things for too long to know whether that is a
recent
cum PTF.

TIA,
- Dan
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