MariaDB server error messages are by default in English. You can change this to a number of other languages. As of MariaDB 10.0, error messages are available in the following languages
- Norwegian-ny (Nynorsk)
The actual error message file is
errmsg.sys, and there is one for each available language, stored in a different directory.
The --lc-messages and --lc-messages-dir system variables can be used to set the server locale used for error messages.
lc_messages_dir is used to provide the directory storing the error message file, and
lc_messages the locale to provide the language. Any valid locale my be given, but if error messages for the associated language are not available, the default (English) will be used. For example, the following will set the error messages to be in French.:
mysqld --lc-messages=fr_CA ... SELECT blah; ERROR 1054 (42S22): Champ 'blah' inconnu dans field list
See locales for a list of locales and their related languages.
lc_messages can be changed while the server is running and has global and session values, so a user can specify the error messages for their session only to be in particular language by running the SET statement, but
lc_messages_dir can only be set when the server starts.
The old method is to use --language when starting the server. This option has been removed in MySQL 5.5, but is still available in MariaDB. You can specify just the language, or the directory, for example:
The character set that the error messages are returned in is determined by the character_set_results variable, which defaults to UTF8.