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select t1.id,t1.dt, t1.mt mt1, t2.mt2
from table t1, (select mt mt2 from table ) t2
where t1.typ = 10
and t2.typ = 12
and t1.id = t2.id;
try something like this... Received on Fri Jan 31 2003 - 01:12:51 CST