Connection and Resultset opening and closing!!!

Question

Hi Friends,
I have a query that returns results like this:
col1**********col2********col3*******col4
xx----------------        -----------yy------------zz
xx----------------        -----------yy------------zz
xx----------------        -----------yy------------zz
....I store these rows and columns in a array and close the resultset that returned me the first query.Now to get column 2 values,I run again a query which takes in col1,col3 and col4 values as parameters.So if the first query return 1000 rows,i got to run 1000 queries.So,I open a new connection each time and close that after it returns the result for each row,i.e i do this for 1000 tiimes.It gives me back the results but delays are increasing as rows increases.Is this a feasible way?Or do i've to have a single connection open,intil i get all the 1000 rows??But i think i can't run 2 resultsets at one time,please help me i'm pretty confused.
Thanks

Answer 1

Thanks Duffymo,
I am already using Tomcat's db connection pooling,Excellent.
and
I guess I knw enough SQL to run this program...Sorry, no insult intended. I can't tell how versed someone is in SQL when I read the question. I'll confess that I don't consider myself an expert. My first thought would be to consult one if I knew one.
However, I do know that excessive network roundtrips are usually the kiss of death for Java/DB interactions.
Maybe a stored proc is a better way to go. If your logic is that complex, and can't be reduced to a JOIN, then I'd write it in a stored proc and let the database do the work, returning the result in one roundtrip.
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