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FBMYSQL_UPGRADEFR(1)


NAME

  mysql_upgrade - check tables for MySQL upgrade


SYNOPSIS

  mysql_upgrade [options]


DESCRIPTION

  mysql_upgrade should be executed each time you upgrade MySQL. It checks all
  tables in all databases for incompatibilities with the current version of
  MySQL Server. If a table is found to have a possible incompatibility, it is
  checked. If any problems are found, the table is repaired.  mysql_upgrade
  also upgrades the system tables so that you can take advantage of new
  privileges or capabilities that might have been added.

  All checked and repaired tables are marked with the current MySQL version
  number. This ensures that next time you run mysql_upgrade with the same
  version of the server, it can tell whether there is any need to check or
  repair the table again.

  mysql_upgrade also saves the MySQL version number in a file named
  mysql_upgrade.info in the data directory. This is used to quickly check if
  all tables have been checked for this release so that table-checking can be
  skipped. To ignore this file, use the --force option.

  To check and repair tables and to upgrade the system tables, mysql_upgrade
  executes the following commands:

  mysqlcheck --check-upgrade --all-databases --auto-repair
  mysql_fix_privilege_tables

  mysql_upgrade supersedes the older mysql_fix_privilege_tables script. In
  MySQL 5.0.19, mysql_upgrade  was added as a shell script and worked only
  for Unix systems. As of MySQL 5.0.23, mysql_upgrade is an executable binary
  and is available on all systems. On systems older than those supporting
  mysql_upgrade, you can execute the mysqlcheck command manually, and then
  upgrade your system tables as described in mysql_fix_privilege_tables(1).

  For details about what is checked, see the description of the FOR UPGRADE
  option of the CHECK TABLE statement (see Section 5.2.3, CHECK TABLE
  Syntax).

  To use mysql_upgrade, make sure that the server is running, and then invoke
  it like this:

  shell> mysql_upgrade [options]

  mysql_upgrade reads options from the command line and fromm the [mysqld]
  and [mysql_upgrade] groups in option files. It supports the following
  options:

  ·  --help

     Display a short help message and exit.

  ·  --basedir=path

     The path to the MySQL installation directory.

  ·  --datadir=path

     The path to the data directory.

  ·  --force

     Force execution of mysqlcheck even if mysql_upgrade has already been
     executed for the current version of MySQL. (In other words, this option
     causes the mysql_upgrade.info file to be ignored.)

  ·  --user=user_name, -u user_name

     The MySQL username to use when connecting to the server. The default
     username is root.

  ·  --verbose

     Verbose mode. Print more information about what the program does.

  Other options are passed to mysqlcheck and to mysql_fix_privilege_tables.
  For example, it might be necessary to specify the --password[=password]
  option.


SEE ALSO

  msql2mysql(1), myisam_ftdump(1), myisamchk(1), myisamlog(1), myisampack(1),
  mysql(1), mysql.server(1), mysql_config(1), mysql_fix_privilege_tables(1),
  mysql_zap(1), mysqlaccess(1), mysqladmin(1), mysqlbinlog(1), mysqlcheck(1),
  mysqld(1), mysqld_multi(1), mysqld_safe(1), mysqldump(1), mysqlhotcopy(1),
  mysqlimport(1), mysqlmanager(1), mysqlshow(1), perror(1), replace(1),
  safe_mysqld(1)

  For more information, please refer to the MySQL Reference Manual, which may
  already be installed locally and which is also available online at
  http://dev.mysql.com/doc/.


AUTHOR

  MySQL AB (http://www.mysql.com/).  This software comes with no warranty.

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