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Closing as "Already Exists" because of the ways to do this that I've added in the comments above.
Here is the content of the .txt file with the requirement:
FIRST ENHANCEMENT:
In future enhancements a record extract ‘key’ should be saved for matching against separate extracts.
SECOND ENHANCEMENT:
Please allow for one or more UNION ALL statements in the SQL part of the DB2 or Legacy extract:
Notice the parenthesis needed at the beginning.
(SELECT * FROM XXXXX.TAXXXXXX
WHERE FIELD_1 = 1
fetch first 5000 rows only)
UNION ALL
(SELECT * FROM XXXXX.TAXXXXXX
WHERE FIELD_1 = 2
fetch first 5000 rows only)
Hi Mary,
For enhancement 1: Optim has a Point and Shoot list, which is a file containing a list of keys that can be used to initiate the Extract process against a start table. Another choice is, you can use the Optim Insert with a column map to insert only the keys of a table into a smaller table in Db2, and use that as a starting table.
Does one of those satisfy the Enhancement 1 requirement?
For Enhancement 2: There are several solutions. But first I should be clear that it appears the same table is used in both parts of the UNION. If not only the first two solutions will work:
I think you can use a Db2 view that is defined as the UNION you show there, as the initial target of the extract.
Or you can do 2 extracts, each extract with the FIELD = 1 or 2 condition, and insert the keys only, to the single result destination.
(Best idea) Or use Optim with a 5000 row limit and the condition on the table being WHERE FIELD IN (1, 2).
Does one of those satisfy the Enhancement 2?