Hi,
In order to make sure that my SQL Select will work (different from the one I use here as an example) I need to understand how sub-queries work.
Here is a sample SQL Select:
select fk_fld, flda, fldb from Table1 where fk_fld IN (select pk_fld from Table2 where <somecondition>
group by pk_fld)
My question is, does VFP (or SQL server) when executing the above SQL Select executes the sub-query first (one time) and then executes main query checking every record of Table1 to see if value FK_FLD is in sub-query?
TIA.
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