Rechercher dans le manuel MySQL

B.4.4.5 Rollback Failure for Nontransactional Tables

Contents

If you receive the following message when trying to perform a ROLLBACK, it means that one or more of the tables you used in the transaction do not support transactions: 

Warning: Some non-transactional changed tables couldn't be rolled back

These nontransactional tables are not affected by the ROLLBACK statement.

If you were not deliberately mixing transactional and nontransactional tables within the transaction, the most likely cause for this message is that a table you thought was transactional actually is not. This can happen if you try to create a table using a transactional storage engine that is not supported by your mysqld server (or that was disabled with a startup option). If mysqld does not support a storage engine, it instead creates the table as a MyISAM table, which is nontransactional.

You can check the storage engine for a table by using either of these statements:

  1. SHOW TABLE STATUS LIKE 'tbl_name';
  2. SHOW CREATE TABLE tbl_name;

See Section 13.7.6.36, “SHOW TABLE STATUS Syntax”, and Section 13.7.6.10, “SHOW CREATE TABLE Syntax”.

To check which storage engines your mysqld server supports, use this statement:

  1. SHOW ENGINES;

See Section 13.7.6.16, “SHOW ENGINES Syntax” for full details.


Find a PHP function

Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-nontransactional-tables.html

The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.

References

  1. View the html document Language of the document:en Manuel MySQL : https://dev.mysql.com/

These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.

Contents Haut