Chunk

Database Table Prefix

From Joomla! Documentation

This page contains changes which are not marked for translation.
Other languages:
Bahasa Indonesia • ‎Deutsch • ‎English • ‎Kiswahili • ‎Nederlands • ‎català • ‎español • ‎français • ‎italiano • ‎polski • ‎svenska • ‎български • ‎русский • ‎ไทย • ‎中文(台灣)‎ • ‎日本語

The database table prefix is a string (a few characters long) prepended to the name of Joomla!'s tables. Using a prefix enables you to run multiple installations of Joomla! using a single database.

The database table prefix can be set during installation. Changing it later is possible, but requires access to the database through a non-Joomla medium or a Joomla Extension such as Akeeba Admin Tools and will cause some downtime.

Extension developers need to use the string #__ to represent the prefix. This will be replaced by the real prefix during runtime by Joomla.