Richard Reina wrote:
>
> I am stuck on a select query and was wondering if someone could help. I
> have I've written a database app. that helps me run my business
> (trucking). I need however to write a query that shows me all of the
> loads that are delivered but not billed (invoiced). Which means that I
> have to select the loads that are delivered but do not have an entry in
> the INVOICED table -- since an entry is made in the INVOICED table
> whenever a load is billed.
>
> I know the query below won't work. Can someone please help me fix it?
>
> SELECT l.load_no l.date FROM loads l, invoiced i
> WHERE l.dlvr_date > 0
> AND l.load_no != i.load_no
>
Maybe something like this (I havent't tried this) :
select l.load_no l.date FROM loads l left join invoiced i on
(l.load_no=i.load_no) where i.load_no is null and l.dlvr_date > 0
--
_/ _/ _/_/_/ ----- Rafał Jank [EMAIL PROTECTED] -----
_/ _/ _/ _/ _/ Wirtualna Polska SA http://www.wp.pl
_/_/_/_/ _/_/_/ ul. Uphagena 2, 80-237 Gdansk, tel/fax. (58) 5215625
_/ _/ _/ --------==* http://szukaj.wp.pl *==----------
---------------------------------------------------------------------
Before posting, please check:
http://www.mysql.com/manual.php (the manual)
http://lists.mysql.com/ (the list archive)
To request this thread, e-mail <[EMAIL PROTECTED]>
To unsubscribe, e-mail <[EMAIL PROTECTED]>
Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
