Re: querying from 3 tables

> i am given the esourceid and i need to query the brgyid and the households
of
> a particular esourceid: query1="select brgyid, households from table1
where
> esourceid=$esourceid;"
>
> the resulting brgyid will then be used to query for the munprovid in
table2:
> query2="select munprovid from table2 where brgyid=(query1);"
>
> the resulting munprovid will then be used to query for the geom column:
> "select geom from table3 where munprovid=(query2);"
>
> my question is, how do i do this? any ideas?

You can do this:

select geom from table3 where munprovid=(select munprovid from table2 where
brgyid=(select brgyid, households from table1 where esourceid=$esourceid));

Chris