>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
You can't have more than one field selected in IN clause

in (select Table2.Field1, Table2.Field2 FROM...

should be:

in (select Table2.Field1 FROM ...