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Re: nested dbi queries question

by Grundle (Scribe)
on Feb 01, 2005 at 22:43 UTC ( #427085=note: print w/replies, xml ) Need Help??

in reply to nested dbi queries question

Why not just make an SQL DELETE statement? Something like the following?

$sql = "delete from sp where (select snum from sp a, supplier b where +a.snum = b.snum AND a.snum = null)"; #if it has not_null then it would be a.snum = ''

Is ther any reason why this wouldn't work?

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Re^2: nested dbi queries question
by philosophia (Sexton) on Feb 01, 2005 at 23:19 UTC
    well, i am looking for rows in table sp where sp.snum does not exist in table suppliers. after i find these rows i have to move them (insert select) into table sp_err, then delete these rows out of table sp.

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