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Look up a "sequence" object. Under the covers it's a data area.
http://pic.dhe.ibm.com/infocenter/iseries/v7r1m0/topic/db2/rbafzsequences.htm
http://pic.dhe.ibm.com/infocenter/iseries/v7r1m0/topic/db2/rbafzseqref.htm
If, however, you just HAVE to have it in a table, you may wish to try
something else. Hmm, there's an option to do something like you want for
INSERTs but UPDATEs are a different animal.
For example I can do
select seqnbr
from final table (insert into qtemp/xxx (SEQTYPE, SEQNBR
VALUES ('A', 1))
You may not see the use here, but for special values on an insert like
identity columns, current timestamp, etc, you would.
But I can't figure out how to do
select seqnbr
from final table (update qtemp/xxx set seqnbr+=1
where seqtype='A')
SQL0199-Keyword UPDATE not expected. Valid tokens: INSERT.
Rob Berendt
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