How to do where clause within the where clause?

Question

Hello.
I have had a look in the previous postings, OWB help and user guide - and can't seem to find how to do the following in OWB:
insert into table A (col1, col2, etc)
(select col1, col2 etc from table B where col2 is (select col3 from table C where col3 = 'I'));
Filter doesn't want to cope with this. Key lookup - doesn't want to cope with this either.
If you know how to do it - please help. It is a vry simple query ( i always seem to be struggling with simple stuff and all the fancy stuff works fine!) :) but i don't know how to do it in OWB. Double-filter somehow? Is there some wonderful operator somewhere that i am not using to a full potential?
Thank you very much for all your help and support
Warmest Regards
Vix

Answer 1

insert into table A (col1, col2, etc)
(select col1, col2 etc from table B where col2 = 'I');
Hi Arnab :)
If only!
The query looks like this:
insert into table A (col1,col2)
select (col1,col2) from table B
where col2 in (select col3 from table C where col3 = 'I'));
hope it makes sense. It should only insert records into table A from table B if records have corresonding entry in table C and this one ofthe attrubutes of this entry = 'I'.
I am trying to convince here that we should be using more views so hopefully i would be able to; joiner is too cluncky and not as fast. As for now i solved it with:
function that check if col2 has corresponding rec in table C then passed either value or null into filter. Filter then compares the two and if value is not null - it will insert this record from table A into table B. Phew!
BTW - i am now trying to get an answer to this misterious java.lang.exeption (my other topic) as soon as i hear anything - will keep you posted.
Thank you very much for all your help and understanding.