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Posted by jim_geissman on 01/08/07 17:24
You might get more speed by creating a temp table (or subquery)
from HREH for each HRCo and HRRef pair, populated with MIN(),
MAX() and MAX(), with GROUP BY HRCo and HRRef. Then update
#MyTable from that, which has a single row per case. This may
depend on the relative sizes of HREH and #MyTable. If HREH has
a lot more cases than #MyTable, the temp table or subquery could
be from the join of the the two, to limit it to the cases present in
#MyTable.
Jim
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