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Important:

To learn more about database username limits, click your database type:

 MySQL

MySQL limits the database username to 16 characters. The system includes the database prefix (the first eight characters of the cPanel account's username and an underscore character) in the character count for the username.

For example:

  • A MySQL database with the db_ prefix allows usernames that contain up to 13 characters.
  • A MySQL database with the example_ prefix allows usernames that contain up to eight characters.
 MariaDB

MariaDB limits the database username to 47 characters. The system includes the database prefix (all of the cPanel account's username and an underscore character) in the character count for the username.

For example:

  • A MariaDB database with the db_ prefix allows usernames that contain up to 44 characters.
  • A MariaDB database with the example_ prefix allows usernames that contain up to 39 characters.
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