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" Correctly returning no rows... hopefully.? Using a cross join just to force the lookup into one statement is not a good choice, unless the files will have almost no rows; i.e. if a key is unavailable, the run could take extreme storage and run-time. Best to avoid the Cartesian product except when the data is known to be very small sets. Presumably those are uniquely keyed across those selections, so there can be only one row from each file that matches the selection. If so, then the following fetched INTO ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://archive.midrange.com/midrange-l/201308/msg00372.html>