Brent Baisley schrieb:
I'll give it a shot.
First, select the people that got the first advertisement:
SELECT c_id,aa_id
FROM adverticelink
WHERE aa_id=4
From that result, you want to additionally filter out who didn't get
the second advertisement. Since that information is contained in the
1
LEFT JOIN adverticelink AS a2 ON (a1.c_id=a2.c_id AND a2.aa_id=6)
WHERE a1.aa_id=4 AND a2.aa_id IS NULL
That should work in 3.23.
- Original Message -
From: "Barry" <[EMAIL PROTECTED]>
To:
Sent: Monday, June 26, 2006 3:58 AM
Subject: Re: Problem searching in grouped r
Barry schrieb:
Hello everyone!
I have a problem with matching in grouped rows.
I have:
- one DB with customers
- one DB with advertisement articles
- one DB that holds what customer got which article
the linked DB looks like:
CREATE TABLE adverticlelink (
c_id int(11) NOT NULL,
aa_id int(
Hello everyone!
I have a problem with matching in grouped rows.
I have:
- one DB with customers
- one DB with advertisement articles
- one DB that holds what customer got which article
the linked DB looks like:
CREATE TABLE adverticlelink (
c_id int(11) NOT NULL,
aa_id int(11) NOT NULL,
