Shilline,

----- Original Message -----
From: "Shilline Lee" <[EMAIL PROTECTED]>
Newsgroups: mailing.database.mysql
Sent: Sunday, October 13, 2002 7:16 AM
Subject: ROW LEVEL Locking not affected


>
> Hello all:
>
>     I did a row level lock with my database ( MySQL-4.0.3-beta with
InnoDB )
> but it seems that it's not affected.
>     I have tried "FOR UPDATE" and "LOCK IN SHARE MODE", the lock seems not
> affected,
> why ? thanks in advanced !

did you remember to

SET AUTOCOMMIT = 0

in the session of user A?

Best regards,

Heikki Tuuri
Innobase Oy
---
InnoDB - transactions, hot backup, and foreign key support for MySQL
See http://www.innodb.com, download MySQL-Max from http://www.mysql.com


sql query

> User A:
>
> SELECT * FROM test FOR UPDATE;
> +---+---+
> | 1 | 2 |
> +---+---+
> | 1 | 2 |
> +---+---+
> 1 row in set (0.00 sec)
>
> User B:
> mysql> SELECT * FROM test;
>
> +---+---+
> | 1 | 2 |
> +---+---+
> | 1 | 2 |
> +---+---+
> 1 row in set (0.00 sec)
>
> mysql> delete from submit;
> Query OK, 1 row affected (0.01 sec)
>
> User A:
>
> mysql> SELECT * FROM test;
> Empty set (0.00 sec)
>
>
>
>



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