Rechercher dans le manuel MySQL
8.4.3.2 Disadvantages of Creating Many Tables in the Same Database
If you have many MyISAM tables in the same
database directory, open, close, and create operations are
slow. If you execute SELECT
statements on many different tables, there is a little
overhead when the table cache is full, because for every table
that has to be opened, another must be closed. You can reduce
this overhead by increasing the number of entries permitted in
the table cache.
Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-creating-many-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
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.
