RE: [PHP-DB] delete statement question
| From: | Rick Emery | Date: | Mon, 25 Mar 2002 20:02:36 +0000 |
| Subject: | RE: [PHP-DB] delete statement question | ||
| Groups: | php.db | ||
| Request: | Send a blank email to php-db+get-17897@lists.php.net to get a copy of this message | ||
if you are using mysql 4.x, you might try:
DELETE answers FROM exam e, questions q, answers a WHERE
a.question_id=q.question_id && q.exam_id=e.exam_id;
I've not tested this, though.
-----Original Message-----
From: Andrés Felipe Hernández [mailto:andres@alleati.com]
Sent: Monday, March 25, 2002 4:42 PM
To: php-db@lists.php.net
Subject: [PHP-DB] delete statement question
Hi, I hope you can help me with this:
I have these 3 tables.
exam (
exam_id
)
questions (
question_id
exam_id
)
answers (
answer_id
question_id
)
I am wondering if i can delete all the rows for answers linked to a given
exam using only one delete statement.
Thanks in advance,
andres
--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php