Hi,
You can't delete selected rows from the same table in mysql.

Just create a temp table containing the select result. And delete from table A
where existe select ... from temp_table;

Mathias


-----Original Message-----
From: Jason Pyeron [mailto:[EMAIL PROTECTED]
Sent: vendredi 2 septembre 2005 19:53
To: mysql@lists.mysql.com
Subject: delete, where, and subselects...


to quote the manual:

Currently, you cannot delete from a table and select from the same table
in a subquery.

mysql> select * from paths where id>=(select max(ppathref) from paths);
+--------+---------+------------+----------+
| id     | typeref | name       | ppathref |
+--------+---------+------------+----------+
| 216883 |       1 | shared     |   216882 |
| 216884 |       1 | shared.bs  |   216883 |
| 216885 |       1 | shared.so  |   216883 |
| 216886 |       1 | threads.bs |   216882 |
| 216887 |       1 | threads.so |   216882 |
+--------+---------+------------+----------+
5 rows in set (0.00 sec)

mysql> delete from paths where id>=(select max(ppathref) from paths);
ERROR 1093 (HY000): You can't specify target table 'paths' for update in FROM
clause

Server version:         4.1.14-standard-log


Are there any workarounds?


Any ideas? TIA

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