Re: SQL solution for copying subset of one file to another, based on a third's contents?

Insert into <TESTFILE>
(select *from customer xx
where exists
(select *From transaction yy
where xx.conum=yy.conum
    and xx.cunum=yy.cunum)
)

- sjl

To: "Midrange Systems Technical Discussion" <midrange-l@xxxxxxxxxxxx>
Sent: Thursday, January 18, 2007 2:25 PM

I need to copy a subset of a huge customer file into a test version of the
file.  The customer file is uniquely keyed by company number (CONUM) and
customer number (CUNUM).  The subset is to be derived from a transaction
file, which has the CONUM & CUNUM keys.  Problem is that the transaction
file will have multiple records for any customer record.  Can SQL's INSERT
somehow be used for this, or is this more easily solved by an RPG
application?

TIA,
Dan
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