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One solution is to create a sequence object, and then initialize the
sequence object to start at the next number you mention in your e-mail.
Once the sequence object is created and initialized, you can use it in a
join to get the next number for all rows.
The sequence object takes care of incrementing its value so each
subsequent row has a unique value, assuming you run with
the appropriate isolation and start with a unique value.
Sequence objects are specially built data areas that DB2 Sql knows how to
use
Here is some example code showing how to create a sequence:
CREATE SEQUENCE mylib/mySeqObj
START WITH 0 <- You can
set your initial value here, or in the next step
INCREMENT BY 1
MAXVALUE 999
CACHE 1000
Here is how you can re-set an existing sequence object:
ALTER SEQUENCE myLib/mySeqObj RESTART WITH 999 <-
Obviously, 999 can be (almost)
any value you choose
Here is an example using the sequence object
INSERT INTO myLib/myTable2
SELECT col1 AS colA,
col14 AS colB,
NEXT VALUE FOR mySeqObj AS colC
FROM Lib01/TableX
ORDER BY 1
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