Hi,
I am running into a problem where the error message is:
Only one expression can be specified in the select list when the
subquery is not introduced with EXISTS
The SQL Select is as follows:
select Table1.Field1 from Table1 where Tabel1.Field1 in (select Table2.Field1, Table2.Field2 from Table2 where
Table2.Field2 in (select Table3.Field2 from Table3))
That is, in the above SQL Select there are two IN clauses.
Does the error mean that I have to change the second IN with EXISTS? Or both IN have to be change to EXISTS?
TIA
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