Documentation Home
MySQL 5.7 Reference Manual
Related Documentation Download this Manual
PDF (US Ltr) - 39.4Mb
PDF (A4) - 39.4Mb
PDF (RPM) - 38.8Mb
HTML Download (TGZ) - 11.1Mb
HTML Download (Zip) - 11.1Mb
HTML Download (RPM) - 9.8Mb
Man Pages (TGZ) - 214.2Kb
Man Pages (Zip) - 323.4Kb
Info (Gzip) - 3.6Mb
Info (Zip) - 3.6Mb
Excerpts from this Manual

MySQL 5.7 Reference Manual  /  ...  /  Reserved User Accounts

6.3.4 Reserved User Accounts

One part of the MySQL installation process is data directory initialization (see Section, “Initializing the Data Directory Manually Using mysqld”). During data directory initialization, MySQL creates user accounts that should be considered reserved:

  • 'root'@'localhost: Used for administrative purposes. This account has all privileges and can perform any operation.

    Strictly speaking, this account name is not reserved, in the sense that some installations rename the root account to something else to avoid exposing a highly privileged account with a well-known name.

  • 'mysql.sys'@'localhost': Used as the DEFINER for sys schema objects. Use of the mysql.sys account avoids problems that occur if a DBA renames or removes the root account. This account is locked so that it cannot be used for client connections.

  • 'mysql.session'@'localhost': Used internally by plugins to access the server. This account is locked so that it cannot be used for client connections.

User Comments
User comments in this section are, as the name implies, provided by MySQL users. The MySQL documentation team is not responsible for, nor do they endorse, any of the information provided here.
Sign Up Login You must be logged in to post a comment.