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----- Original Message -----
Sent: Wednesday, September 07, 2005 4:05
PM
Subject: Re: [SQL] Help with multistage
query
I have a perl script that issues
a series of SQL statements to perform some queries. The script works,
but I believe there must be a more elegant way to do this.
The simplified queries look like
this:
SELECT id FROM t1 WHERE
condition1; ;returns about 2k records which are stored in
@idarray
foreach $id (@idarray)
{
SELECT x FROM t2
WHERE id=$id; ; each select returns about 100 records which are
saved in a perl variable
}
how about
select t1.id from t1, t2 where t1.id = t2.id and
t2.id = x
or more correctly, based on the OP's example:
select t2.x from t1, t2 where t1.id = t2.id and t1.id =
<condition>
--
Matt
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- Re: [SQL] Help with multistage query Matt Emmerton
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