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MYSQLCHECK(1)		     MySQL Database System		 MYSQLCHECK(1)

NAME
       mysqlcheck - a table maintenance	program

SYNOPSIS

       mysqlcheck [options] [db_name [tbl_name ...]]

DESCRIPTION
       The mysqlcheck client performs table maintenance: It checks, repairs,
       optimizes, or analyzes tables.

       Each table is locked and	therefore unavailable to other sessions	while
       it is being processed, although for check operations, the table is
       locked with a READ lock only (see Section 15.3.6, "LOCK TABLES and
       UNLOCK TABLES Statements", for more information about READ and WRITE
       locks). Table maintenance operations can	be time-consuming,
       particularly for	large tables. If you use the --databases or
       --all-databases option to process all tables in one or more databases,
       an invocation of	mysqlcheck might take a	long time. (This is also true
       for the MySQL upgrade procedure if it determines	that table checking is
       needed because it processes tables the same way.)

       mysqlcheck must be used when the	mysqld server is running, which	means
       that you	do not have to stop the	server to perform table	maintenance.

       mysqlcheck uses the SQL statements CHECK	TABLE, REPAIR TABLE, ANALYZE
       TABLE, and OPTIMIZE TABLE in a convenient way for the user. It
       determines which	statements to use for the operation you	want to
       perform,	and then sends the statements to the server to be executed.
       For details about which storage engines each statement works with, see
       the descriptions	for those statements in	Section	15.7.3,	"Table
       Maintenance Statements".

       All storage engines do not necessarily support all four maintenance
       operations. In such cases, an error message is displayed. For example,
       if test.t is an MEMORY table, an	attempt	to check it produces this
       result:

	   $> mysqlcheck test t
	   test.t
	   note	    : The storage engine for the table doesn't support check

       If mysqlcheck is	unable to repair a table, see Section 3.14,
       "Rebuilding or Repairing	Tables or Indexes" for manual table repair
       strategies. This	is the case, for example, for InnoDB tables, which can
       be checked with CHECK TABLE, but	not repaired with REPAIR TABLE.

	   Caution

	   It is best to make a	backup of a table before performing a table
	   repair operation; under some	circumstances the operation might
	   cause data loss. Possible causes include but	are not	limited	to
	   file	system errors.

       There are three general ways to invoke mysqlcheck:

	   mysqlcheck [options]	db_name	[tbl_name ...]
	   mysqlcheck [options]	--databases db_name ...
	   mysqlcheck [options]	--all-databases

       If you do not name any tables following db_name or if you use the
       --databases or --all-databases option, entire databases are checked.

       mysqlcheck has a	special	feature	compared to other client programs. The
       default behavior	of checking tables (--check) can be changed by
       renaming	the binary. If you want	to have	a tool that repairs tables by
       default,	you should just	make a copy of mysqlcheck named	mysqlrepair,
       or make a symbolic link to mysqlcheck named mysqlrepair.	If you invoke
       mysqlrepair, it repairs tables.

       The names shown in the following	table can be used to change mysqlcheck
       default behavior.
       +---------------+-----------------------+
       | Command       | Meaning	       |
       +---------------+-----------------------+
       | mysqlrepair   | The default option is |
       |	       | --repair	       |
       +---------------+-----------------------+
       | mysqlanalyze  | The default option is |
       |	       | --analyze	       |
       +---------------+-----------------------+
       | mysqloptimize | The default option is |
       |	       | --optimize	       |
       +---------------+-----------------------+

       mysqlcheck supports the following options, which	can be specified on
       the command line	or in the [mysqlcheck] and [client] groups of an
       option file. For	information about option files used by MySQL programs,
       see Section 6.2.2.2, "Using Option Files".

          --help, -?
	   +---------------------+--------+
	   | Command-Line Format | --help |
	   +---------------------+--------+

	   Display a help message and exit.

          --all-databases, -A
	   +---------------------+-----------------+
	   | Command-Line Format | --all-databases |
	   +---------------------+-----------------+

	   Check all tables in all databases. This is the same as using	the
	   --databases option and naming all the databases on the command
	   line, except	that the INFORMATION_SCHEMA and	performance_schema
	   databases are not checked. They can be checked by explicitly	naming
	   them	with the --databases option.

          --all-in-1, -1
	   +---------------------+------------+
	   | Command-Line Format | --all-in-1 |
	   +---------------------+------------+

	   Instead of issuing a	statement for each table, execute a single
	   statement for each database that names all the tables from that
	   database to be processed.

          --analyze, -a
	   +---------------------+-----------+
	   | Command-Line Format | --analyze |
	   +---------------------+-----------+

	   Analyze the tables.

          --auto-repair
	   +---------------------+---------------+
	   | Command-Line Format | --auto-repair |
	   +---------------------+---------------+

	   If a	checked	table is corrupted, automatically fix it. Any
	   necessary repairs are done after all	tables have been checked.

          --bind-address=ip_address
	   +---------------------+---------------------------+
	   | Command-Line Format | --bind-address=ip_address |
	   +---------------------+---------------------------+

	   On a	computer having	multiple network interfaces, use this option
	   to select which interface to	use for	connecting to the MySQL
	   server.

          --character-sets-dir=dir_name
	   +---------------------+-------------------+
	   | Command-Line Format | --character-sets- |
	   |			 | dir=dir_name	     |
	   +---------------------+-------------------+
	   | Type		 | Directory name    |
	   +---------------------+-------------------+

	   The directory where character sets are installed. See
	   Section 12.15, "Character Set Configuration".

          --check, -c
	   +---------------------+---------+
	   | Command-Line Format | --check |
	   +---------------------+---------+

	   Check the tables for	errors.	This is	the default operation.

          --check-only-changed, -C
	   +---------------------+----------------------+
	   | Command-Line Format | --check-only-changed	|
	   +---------------------+----------------------+

	   Check only tables that have changed since the last check or that
	   have	not been closed	properly.

          --check-upgrade, -g
	   +---------------------+-----------------+
	   | Command-Line Format | --check-upgrade |
	   +---------------------+-----------------+

	   Invoke CHECK	TABLE with the FOR UPGRADE option to check tables for
	   incompatibilities with the current version of the server.

          --compress
	   +---------------------+-----------------------+
	   | Command-Line Format | --compress[={OFF|ON}] |
	   +---------------------+-----------------------+
	   | Deprecated		 | 8.0.18		 |
	   +---------------------+-----------------------+
	   | Type		 | Boolean		 |
	   +---------------------+-----------------------+
	   | Default Value	 | OFF			 |
	   +---------------------+-----------------------+

	   Compress all	information sent between the client and	the server if
	   possible. See Section 6.2.8,	"Connection Compression	Control".

	   As of MySQL 8.0.18, this option is deprecated. Expect it to be
	   removed in a	future version of MySQL. See the section called
	   "Configuring	Legacy Connection Compression".

          --compression-algorithms=value
	   +---------------------+-------------------------+
	   | Command-Line Format | --compression-	   |
	   |			 | algorithms=value	   |
	   +---------------------+-------------------------+
	   | Introduced		 | 8.0.18		   |
	   +---------------------+-------------------------+
	   | Type		 | Set			   |
	   +---------------------+-------------------------+
	   | Default Value	 | uncompressed		   |
	   +---------------------+-------------------------+
	   | Valid Values	 |			   |
	   |			 |	      zlib	   |
	   |			 |			   |
	   |			 |	      zstd	   |
	   |			 |			   |
	   |			 |	      uncompressed |
	   +---------------------+-------------------------+

	   The permitted compression algorithms	for connections	to the server.
	   The available algorithms are	the same as for	the
	   protocol_compression_algorithms system variable. The	default	value
	   is uncompressed.

	   For more information, see Section 6.2.8, "Connection	Compression
	   Control".

	   This	option was added in MySQL 8.0.18.

          --databases,	-B
	   +---------------------+-------------+
	   | Command-Line Format | --databases |
	   +---------------------+-------------+

	   Process all tables in the named databases. Normally,	mysqlcheck
	   treats the first name argument on the command line as a database
	   name	and any	following names	as table names.	With this option, it
	   treats all name arguments as	database names.

          --debug[=debug_options], -# [debug_options]
	   +---------------------+-------------------------+
	   | Command-Line Format | --debug[=debug_options] |
	   +---------------------+-------------------------+
	   | Type		 | String		   |
	   +---------------------+-------------------------+
	   | Default Value	 | d:t:o		   |
	   +---------------------+-------------------------+

	   Write a debugging log. A typical debug_options string is
	   d:t:o,file_name. The	default	is d:t:o.

	   This	option is available only if MySQL was built using WITH_DEBUG.
	   MySQL release binaries provided by Oracle are not built using this
	   option.

          --debug-check
	   +---------------------+---------------+
	   | Command-Line Format | --debug-check |
	   +---------------------+---------------+
	   | Type		 | Boolean	 |
	   +---------------------+---------------+
	   | Default Value	 | FALSE	 |
	   +---------------------+---------------+

	   Print some debugging	information when the program exits.

	   This	option is available only if MySQL was built using WITH_DEBUG.
	   MySQL release binaries provided by Oracle are not built using this
	   option.

          --debug-info
	   +---------------------+--------------+
	   | Command-Line Format | --debug-info	|
	   +---------------------+--------------+
	   | Type		 | Boolean	|
	   +---------------------+--------------+
	   | Default Value	 | FALSE	|
	   +---------------------+--------------+

	   Print debugging information and memory and CPU usage	statistics
	   when	the program exits.

	   This	option is available only if MySQL was built using WITH_DEBUG.
	   MySQL release binaries provided by Oracle are not built using this
	   option.

          --default-character-set=charset_name
	   +---------------------+----------------------+
	   | Command-Line Format | --default-character-	|
	   |			 | set=charset_name	|
	   +---------------------+----------------------+
	   | Type		 | String		|
	   +---------------------+----------------------+

	   Use charset_name as the default character set. See Section 12.15,
	   "Character Set Configuration".

          --defaults-extra-file=file_name
	   +---------------------+-------------------+
	   | Command-Line Format | --defaults-extra- |
	   |			 | file=file_name    |
	   +---------------------+-------------------+
	   | Type		 | File	name	     |
	   +---------------------+-------------------+

	   Read	this option file after the global option file but (on Unix)
	   before the user option file.	If the file does not exist or is
	   otherwise inaccessible, an error occurs. If file_name is not	an
	   absolute path name, it is interpreted relative to the current
	   directory.

	   For additional information about this and other option-file
	   options, see	Section	6.2.2.3, "Command-Line Options that Affect
	   Option-File Handling".

          --defaults-file=file_name
	   +---------------------+---------------------------+
	   | Command-Line Format | --defaults-file=file_name |
	   +---------------------+---------------------------+
	   | Type		 | File	name		     |
	   +---------------------+---------------------------+

	   Use only the	given option file. If the file does not	exist or is
	   otherwise inaccessible, an error occurs. If file_name is not	an
	   absolute path name, it is interpreted relative to the current
	   directory.

	   Exception: Even with	--defaults-file, client	programs read
	   .mylogin.cnf.

	   For additional information about this and other option-file
	   options, see	Section	6.2.2.3, "Command-Line Options that Affect
	   Option-File Handling".

          --defaults-group-suffix=str
	   +---------------------+-------------------+
	   | Command-Line Format | --defaults-group- |
	   |			 | suffix=str	     |
	   +---------------------+-------------------+
	   | Type		 | String	     |
	   +---------------------+-------------------+

	   Read	not only the usual option groups, but also groups with the
	   usual names and a suffix of str. For	example, mysqlcheck normally
	   reads the [client] and [mysqlcheck] groups. If this option is given
	   as --defaults-group-suffix=_other, mysqlcheck also reads the
	   [client_other] and [mysqlcheck_other] groups.

	   For additional information about this and other option-file
	   options, see	Section	6.2.2.3, "Command-Line Options that Affect
	   Option-File Handling".

          --extended, -e
	   +---------------------+------------+
	   | Command-Line Format | --extended |
	   +---------------------+------------+

	   If you are using this option	to check tables, it ensures that they
	   are 100% consistent but takes a long	time.

	   If you are using this option	to repair tables, it runs an extended
	   repair that may not only take a long	time to	execute, but may
	   produce a lot of garbage rows also!

          --default-auth=plugin
	   +---------------------+-----------------------+
	   | Command-Line Format | --default-auth=plugin |
	   +---------------------+-----------------------+
	   | Type		 | String		 |
	   +---------------------+-----------------------+

	   A hint about	which client-side authentication plugin	to use.	See
	   Section 8.2.17, "Pluggable Authentication".

          --enable-cleartext-plugin
	   +---------------------+---------------------------+
	   | Command-Line Format | --enable-cleartext-plugin |
	   +---------------------+---------------------------+
	   | Type		 | Boolean		     |
	   +---------------------+---------------------------+
	   | Default Value	 | FALSE		     |
	   +---------------------+---------------------------+

	   Enable the mysql_clear_password cleartext authentication plugin.
	   (See	Section	8.4.1.4, "Client-Side Cleartext	Pluggable
	   Authentication".)

          --fast, -F
	   +---------------------+--------+
	   | Command-Line Format | --fast |
	   +---------------------+--------+

	   Check only tables that have not been	closed properly.

          --force, -f
	   +---------------------+---------+
	   | Command-Line Format | --force |
	   +---------------------+---------+

	   Continue even if an SQL error occurs.

          --get-server-public-key
	   +---------------------+-------------------------+
	   | Command-Line Format | --get-server-public-key |
	   +---------------------+-------------------------+
	   | Type		 | Boolean		   |
	   +---------------------+-------------------------+

	   Request from	the server the public key required for RSA key
	   pair-based password exchange. This option applies to	clients	that
	   authenticate	with the caching_sha2_password authentication plugin.
	   For that plugin, the	server does not	send the public	key unless
	   requested. This option is ignored for accounts that do not
	   authenticate	with that plugin. It is	also ignored if	RSA-based
	   password exchange is	not used, as is	the case when the client
	   connects to the server using	a secure connection.

	   If --server-public-key-path=file_name is given and specifies	a
	   valid public	key file, it takes precedence over
	   --get-server-public-key.

	   For information about the caching_sha2_password plugin, see
	   Section 8.4.1.2, "Caching SHA-2 Pluggable Authentication".

          --host=host_name, -h	host_name
	   +---------------------+------------------+
	   | Command-Line Format | --host=host_name |
	   +---------------------+------------------+
	   | Type		 | String	    |
	   +---------------------+------------------+
	   | Default Value	 | localhost	    |
	   +---------------------+------------------+

	   Connect to the MySQL	server on the given host.

          --login-path=name
	   +---------------------+-------------------+
	   | Command-Line Format | --login-path=name |
	   +---------------------+-------------------+
	   | Type		 | String	     |
	   +---------------------+-------------------+

	   Read	options	from the named login path in the .mylogin.cnf login
	   path	file. A	"login path" is	an option group	containing options
	   that	specify	which MySQL server to connect to and which account to
	   authenticate	as. To create or modify	a login	path file, use the
	   mysql_config_editor utility.	See mysql_config_editor(1).

	   For additional information about this and other option-file
	   options, see	Section	6.2.2.3, "Command-Line Options that Affect
	   Option-File Handling".

          --medium-check, -m
	   +---------------------+----------------+
	   | Command-Line Format | --medium-check |
	   +---------------------+----------------+

	   Do a	check that is faster than an --extended	operation. This	finds
	   only	99.99% of all errors, which should be good enough in most
	   cases.

          --no-defaults
	   +---------------------+---------------+
	   | Command-Line Format | --no-defaults |
	   +---------------------+---------------+

	   Do not read any option files. If program startup fails due to
	   reading unknown options from	an option file,	--no-defaults can be
	   used	to prevent them	from being read.

	   The exception is that the .mylogin.cnf file is read in all cases,
	   if it exists. This permits passwords	to be specified	in a safer way
	   than	on the command line even when --no-defaults is used. To	create
	   .mylogin.cnf, use the mysql_config_editor utility. See
	   mysql_config_editor(1).

	   For additional information about this and other option-file
	   options, see	Section	6.2.2.3, "Command-Line Options that Affect
	   Option-File Handling".

          --optimize, -o
	   +---------------------+------------+
	   | Command-Line Format | --optimize |
	   +---------------------+------------+

	   Optimize the	tables.

          --password[=password], -p[password]
	   +---------------------+-----------------------+
	   | Command-Line Format | --password[=password] |
	   +---------------------+-----------------------+
	   | Type		 | String		 |
	   +---------------------+-----------------------+

	   The password	of the MySQL account used for connecting to the
	   server. The password	value is optional. If not given, mysqlcheck
	   prompts for one. If given, there must be no space between
	   --password= or -p and the password following	it. If no password
	   option is specified,	the default is to send no password.

	   Specifying a	password on the	command	line should be considered
	   insecure. To	avoid giving the password on the command line, use an
	   option file.	See Section 8.1.2.1, "End-User Guidelines for Password
	   Security".

	   To explicitly specify that there is no password and that mysqlcheck
	   should not prompt for one, use the --skip-password option.

          --password1[=pass_val] The password for multifactor authentication
	   factor 1 of the MySQL account used for connecting to	the server.
	   The password	value is optional. If not given, mysqlcheck prompts
	   for one. If given, there must be no space between --password1= and
	   the password	following it. If no password option is specified, the
	   default is to send no password.

	   Specifying a	password on the	command	line should be considered
	   insecure. To	avoid giving the password on the command line, use an
	   option file.	See Section 8.1.2.1, "End-User Guidelines for Password
	   Security".

	   To explicitly specify that there is no password and that mysqlcheck
	   should not prompt for one, use the --skip-password1 option.

	   --password1 and --password are synonymous, as are --skip-password1
	   and --skip-password.

          --password2[=pass_val] The password for multifactor authentication
	   factor 2 of the MySQL account used for connecting to	the server.
	   The semantics of this option	are similar to the semantics for
	   --password1;	see the	description of that option for details.

          --password3[=pass_val] The password for multifactor authentication
	   factor 3 of the MySQL account used for connecting to	the server.
	   The semantics of this option	are similar to the semantics for
	   --password1;	see the	description of that option for details.

          --pipe, -W
	   +---------------------+--------+
	   | Command-Line Format | --pipe |
	   +---------------------+--------+
	   | Type		 | String |
	   +---------------------+--------+

	   On Windows, connect to the server using a named pipe. This option
	   applies only	if the server was started with the named_pipe system
	   variable enabled to support named-pipe connections. In addition,
	   the user making the connection must be a member of the Windows
	   group specified by the named_pipe_full_access_group system
	   variable.

          --plugin-dir=dir_name
	   +---------------------+-----------------------+
	   | Command-Line Format | --plugin-dir=dir_name |
	   +---------------------+-----------------------+
	   | Type		 | Directory name	 |
	   +---------------------+-----------------------+

	   The directory in which to look for plugins. Specify this option if
	   the --default-auth option is	used to	specify	an authentication
	   plugin but mysqlcheck does not find it. See Section 8.2.17,
	   "Pluggable Authentication".

          --port=port_num, -P port_num
	   +---------------------+-----------------+
	   | Command-Line Format | --port=port_num |
	   +---------------------+-----------------+
	   | Type		 | Numeric	   |
	   +---------------------+-----------------+
	   | Default Value	 | 3306		   |
	   +---------------------+-----------------+

	   For TCP/IP connections, the port number to use.

          --print-defaults
	   +---------------------+------------------+
	   | Command-Line Format | --print-defaults |
	   +---------------------+------------------+

	   Print the program name and all options that it gets from option
	   files.

	   For additional information about this and other option-file
	   options, see	Section	6.2.2.3, "Command-Line Options that Affect
	   Option-File Handling".

          --protocol={TCP|SOCKET|PIPE|MEMORY}
	   +---------------------+-------------------+
	   | Command-Line Format | --protocol=type   |
	   +---------------------+-------------------+
	   | Type		 | String	     |
	   +---------------------+-------------------+
	   | Default Value	 | [see	text]	     |
	   +---------------------+-------------------+
	   | Valid Values	 |		     |
	   |			 |	      TCP    |
	   |			 |		     |
	   |			 |	      SOCKET |
	   |			 |		     |
	   |			 |	      PIPE   |
	   |			 |		     |
	   |			 |	      MEMORY |
	   +---------------------+-------------------+

	   The transport protocol to use for connecting	to the server. It is
	   useful when the other connection parameters normally	result in use
	   of a	protocol other than the	one you	want. For details on the
	   permissible values, see Section 6.2.7, "Connection Transport
	   Protocols".

          --quick, -q
	   +---------------------+---------+
	   | Command-Line Format | --quick |
	   +---------------------+---------+

	   If you are using this option	to check tables, it prevents the check
	   from	scanning the rows to check for incorrect links.	This is	the
	   fastest check method.

	   If you are using this option	to repair tables, it tries to repair
	   only	the index tree.	This is	the fastest repair method.

          --repair, -r
	   +---------------------+----------+
	   | Command-Line Format | --repair |
	   +---------------------+----------+

	   Perform a repair that can fix almost	anything except	unique keys
	   that	are not	unique.

          --server-public-key-path=file_name
	   +---------------------+----------------------+
	   | Command-Line Format | --server-public-key-	|
	   |			 | path=file_name	|
	   +---------------------+----------------------+
	   | Type		 | File	name		|
	   +---------------------+----------------------+

	   The path name to a file in PEM format containing a client-side copy
	   of the public key required by the server for	RSA key	pair-based
	   password exchange. This option applies to clients that authenticate
	   with	the sha256_password or caching_sha2_password authentication
	   plugin. This	option is ignored for accounts that do not
	   authenticate	with one of those plugins. It is also ignored if
	   RSA-based password exchange is not used, as is the case when	the
	   client connects to the server using a secure	connection.

	   If --server-public-key-path=file_name is given and specifies	a
	   valid public	key file, it takes precedence over
	   --get-server-public-key.

	   For sha256_password,	this option applies only if MySQL was built
	   using OpenSSL.

	   For information about the sha256_password and caching_sha2_password
	   plugins, see	Section	8.4.1.3, "SHA-256 Pluggable Authentication",
	   and Section 8.4.1.2,	"Caching SHA-2 Pluggable Authentication".

          --shared-memory-base-name=name
	   +---------------------+-----------------------+
	   | Command-Line Format | --shared-memory-base- |
	   |			 | name=name		 |
	   +---------------------+-----------------------+
	   | Platform Specific	 | Windows		 |
	   +---------------------+-----------------------+

	   On Windows, the shared-memory name to use for connections made
	   using shared	memory to a local server. The default value is MYSQL.
	   The shared-memory name is case-sensitive.

	   This	option applies only if the server was started with the
	   shared_memory system	variable enabled to support shared-memory
	   connections.

          --silent, -s
	   +---------------------+----------+
	   | Command-Line Format | --silent |
	   +---------------------+----------+

	   Silent mode.	Print only error messages.

          --skip-database=db_name
	   +---------------------+-------------------------+
	   | Command-Line Format | --skip-database=db_name |
	   +---------------------+-------------------------+

	   Do not include the named database (case-sensitive) in the
	   operations performed	by mysqlcheck.

          --socket=path, -S path
	   +---------------------+--------------------------------+
	   | Command-Line Format | --socket={file_name|pipe_name} |
	   +---------------------+--------------------------------+
	   | Type		 | String			  |
	   +---------------------+--------------------------------+

	   For connections to localhost, the Unix socket file to use, or, on
	   Windows, the	name of	the named pipe to use.

	   On Windows, this option applies only	if the server was started with
	   the named_pipe system variable enabled to support named-pipe
	   connections.	In addition, the user making the connection must be a
	   member of the Windows group specified by the
	   named_pipe_full_access_group	system variable.

          --ssl* Options that begin with --ssl	specify	whether	to connect to
	   the server using encryption and indicate where to find SSL keys and
	   certificates. See the section called	"Command Options for Encrypted
	   Connections".

          --ssl-fips-mode={OFF|ON|STRICT}
	   +---------------------+----------------------+
	   | Command-Line Format | --ssl-fips-		|
	   |			 | mode={OFF|ON|STRICT}	|
	   +---------------------+----------------------+
	   | Deprecated		 | 8.0.34		|
	   +---------------------+----------------------+
	   | Type		 | Enumeration		|
	   +---------------------+----------------------+
	   | Default Value	 | OFF			|
	   +---------------------+----------------------+
	   | Valid Values	 |			|
	   |			 |	      OFF	|
	   |			 |			|
	   |			 |	      ON	|
	   |			 |			|
	   |			 |	      STRICT	|
	   +---------------------+----------------------+

	   Controls whether to enable FIPS mode	on the client side. The
	   --ssl-fips-mode option differs from other --ssl-xxx options in that
	   it is not used to establish encrypted connections, but rather to
	   affect which	cryptographic operations to permit. See	Section	8.8,
	   "FIPS Support".

	   These --ssl-fips-mode values	are permitted:

	      OFF: Disable FIPS mode.

	      ON: Enable FIPS mode.

	      STRICT: Enable "strict" FIPS mode.

	       Note
	       If the OpenSSL FIPS Object Module is not	available, the only
	       permitted value for --ssl-fips-mode is OFF. In this case,
	       setting --ssl-fips-mode to ON or	STRICT causes the client to
	       produce a warning at startup and	to operate in non-FIPS mode.
	   As of MySQL 8.0.34, this option is deprecated. Expect it to be
	   removed in a	future version of MySQL.

          --tables
	   +---------------------+----------+
	   | Command-Line Format | --tables |
	   +---------------------+----------+

	   Override the	--databases or -B option. All name arguments following
	   the option are regarded as table names.

          --tls-ciphersuites=ciphersuite_list
	   +---------------------+-------------------------------+
	   | Command-Line Format | --tls-			 |
	   |			 | ciphersuites=ciphersuite_list |
	   +---------------------+-------------------------------+
	   | Introduced		 | 8.0.16			 |
	   +---------------------+-------------------------------+
	   | Type		 | String			 |
	   +---------------------+-------------------------------+

	   The permissible ciphersuites	for encrypted connections that use
	   TLSv1.3. The	value is a list	of one or more colon-separated
	   ciphersuite names. The ciphersuites that can	be named for this
	   option depend on the	SSL library used to compile MySQL. For
	   details, see	Section	8.3.2, "Encrypted Connection TLS Protocols and
	   Ciphers".

	   This	option was added in MySQL 8.0.16.

          --tls-version=protocol_list
	   +-------------------------+------------------------------------------+
	   | Command-Line Format     | --tls-					|
	   |			     | version=protocol_list			|
	   +-------------------------+------------------------------------------+
	   | Type		     | String					|
	   +-------------------------+------------------------------------------+
	   | Default Value ( 8.0.16) |						|
	   |			     |		  TLSv1,TLSv1.1,TLSv1.2,TLSv1.3	|
	   |			     |		  (OpenSSL 1.1.1		|
	   |			     |		  or higher)			|
	   |			     |						|
	   |			     |		  TLSv1,TLSv1.1,TLSv1.2		|
	   |			     |		  (otherwise)			|
	   +-------------------------+------------------------------------------+
	   | Default Value ( 8.0.15) | TLSv1,TLSv1.1,TLSv1.2			|
	   +-------------------------+------------------------------------------+

	   The permissible TLS protocols for encrypted connections. The	value
	   is a	list of	one or more comma-separated protocol names. The
	   protocols that can be named for this	option depend on the SSL
	   library used	to compile MySQL. For details, see Section 8.3.2,
	   "Encrypted Connection TLS Protocols and Ciphers".

          --use-frm
	   +---------------------+-----------+
	   | Command-Line Format | --use-frm |
	   +---------------------+-----------+

	   For repair operations on MyISAM tables, get the table structure
	   from	the data dictionary so that the	table can be repaired even if
	   the .MYI header is corrupted.

          --user=user_name, -u	user_name
	   +---------------------+-------------------+
	   | Command-Line Format | --user=user_name, |
	   +---------------------+-------------------+
	   | Type		 | String	     |
	   +---------------------+-------------------+

	   The user name of the	MySQL account to use for connecting to the
	   server.

          --verbose, -v
	   +---------------------+-----------+
	   | Command-Line Format | --verbose |
	   +---------------------+-----------+

	   Verbose mode. Print information about the various stages of program
	   operation.

          --version, -V
	   +---------------------+-----------+
	   | Command-Line Format | --version |
	   +---------------------+-----------+

	   Display version information and exit.

          --write-binlog
	   +---------------------+----------------+
	   | Command-Line Format | --write-binlog |
	   +---------------------+----------------+

	   This	option is enabled by default, so that ANALYZE TABLE, OPTIMIZE
	   TABLE, and REPAIR TABLE statements generated	by mysqlcheck are
	   written to the binary log. Use --skip-write-binlog to cause
	   NO_WRITE_TO_BINLOG to be added to the statements so that they are
	   not logged. Use the --skip-write-binlog when	these statements
	   should not be sent to replicas or run when using the	binary logs
	   for recovery	from backup.

          --zstd-compression-level=level
	   +---------------------+----------------------------+
	   | Command-Line Format | --zstd-compression-level=# |
	   +---------------------+----------------------------+
	   | Introduced		 | 8.0.18		      |
	   +---------------------+----------------------------+
	   | Type		 | Integer		      |
	   +---------------------+----------------------------+

	   The compression level to use	for connections	to the server that use
	   the zstd compression	algorithm. The permitted levels	are from 1 to
	   22, with larger values indicating increasing	levels of compression.
	   The default zstd compression	level is 3. The	compression level
	   setting has no effect on connections	that do	not use	zstd
	   compression.

	   For more information, see Section 6.2.8, "Connection	Compression
	   Control".

	   This	option was added in MySQL 8.0.18.

COPYRIGHT
       Copyright (C) 1997, 2026, Oracle	and/or its affiliates.

       This documentation is free software; you	can redistribute it and/or
       modify it only under the	terms of the GNU General Public	License	as
       published by the	Free Software Foundation; version 2 of the License.

       This documentation is distributed in the	hope that it will be useful,
       but WITHOUT ANY WARRANTY; without even the implied warranty of
       MERCHANTABILITY or FITNESS FOR A	PARTICULAR PURPOSE. See	the GNU
       General Public License for more details.

       You should have received	a copy of the GNU General Public License along
       with the	program; if not, write to the Free Software Foundation,	Inc.,
       51 Franklin Street, Fifth Floor,	Boston,	MA 02110-1301 USA or see
       http://www.gnu.org/licenses/.

SEE ALSO
       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
       Oracle Corporation (http://dev.mysql.com/).

MySQL 8.0			  03/23/2026			 MYSQLCHECK(1)

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