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Updated: Thursday, June 13, 2019
 
 

mysqlshow (1)

Name

mysqlshow - display database, table, and column information

Synopsis

mysqlshow [options] [db_name [tbl_name [col_name]]]

Description

MYSQLSHOW(1)                 MySQL Database System                MYSQLSHOW(1)



NAME
       mysqlshow - display database, table, and column information

SYNOPSIS
       mysqlshow [options] [db_name [tbl_name [col_name]]]

DESCRIPTION
       The mysqlshow client can be used to quickly see which databases exist,
       their tables, or a table's columns or indexes.

       mysqlshow provides a command-line interface to several SQL SHOW
       statements. See Section 13.7.5, "SHOW Syntax". The same information can
       be obtained by using those statements directly. For example, you can
       issue them from the mysql client program.

       Invoke mysqlshow like this:

           shell> mysqlshow [options] [db_name [tbl_name [col_name]]]

       o   If no database is given, a list of database names is shown.

       o   If no table is given, all matching tables in the database are
           shown.

       o   If no column is given, all matching columns and column types in the
           table are shown.

       The output displays only the names of those databases, tables, or
       columns for which you have some privileges.

       If the last argument contains shell or SQL wildcard characters (*, ?,
       %, or _), only those names that are matched by the wildcard are shown.
       If a database name contains any underscores, those should be escaped
       with a backslash (some Unix shells require two) to get a list of the
       proper tables or columns.  * and ?  characters are converted into SQL %
       and _ wildcard characters. This might cause some confusion when you try
       to display the columns for a table with a _ in the name, because in
       this case, mysqlshow shows you only the table names that match the
       pattern. This is easily fixed by adding an extra % last on the command
       line as a separate argument.

       mysqlshow supports the following options, which can be specified on the
       command line or in the [mysqlshow] and [client] groups of an option
       file. For information about option files used by MySQL programs, see
       Section 4.2.6, "Using Option Files".

       o   --help, -?

           Display a help message and exit.

       o   --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.

       o   --character-sets-dir=dir_name

           The directory where character sets are installed. See
           Section 10.14, "Character Set Configuration".

       o   --compress, -C

           Compress all information sent between the client and the server if
           both support compression.

       o   --count

           Show the number of rows per table. This can be slow for non-MyISAM
           tables.

       o   --debug[=debug_options], -# [debug_options]

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

       o   --debug-check

           Print some debugging information when the program exits.

       o   --debug-info

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

       o   --default-character-set=charset_name

           Use charset_name as the default character set. See Section 10.14,
           "Character Set Configuration".

       o   --default-auth=plugin

           A hint about the client-side authentication plugin to use. See
           Section 6.3.9, "Pluggable Authentication".

       o   --defaults-extra-file=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.  file_name is interpreted
           relative to the current directory if given as a relative path name
           rather than a full path name.

           For additional information about this and other option-file
           options, see Section 4.2.7, "Command-Line Options that Affect
           Option-File Handling".

       o   --defaults-file=file_name

           Use only the given option file. If the file does not exist or is
           otherwise inaccessible, an error occurs.  file_name is interpreted
           relative to the current directory if given as a relative path name
           rather than a full path name.

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

           For additional information about this and other option-file
           options, see Section 4.2.7, "Command-Line Options that Affect
           Option-File Handling".

       o   --defaults-group-suffix=str

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

           For additional information about this and other option-file
           options, see Section 4.2.7, "Command-Line Options that Affect
           Option-File Handling".

       o   --enable-cleartext-plugin

           Enable the mysql_clear_password cleartext authentication plugin.
           (See Section 6.5.1.6, "Client-Side Cleartext Pluggable
           Authentication".)

           This option was added in MySQL 5.7.10.

       o   --get-server-public-key

           Request from the server the RSA public key that it uses for key
           pair-based password exchange. This option applies to clients that
           connect to the server using an account that authenticates with the
           caching_sha2_password authentication plugin. For connections by
           such accounts, the server does not send the public key to the
           client unless requested. The option is ignored for accounts that do
           not authenticate with that plugin. It is also ignored if RSA-based
           password exchange is not needed, 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 6.5.1.5, "Caching SHA-2 Pluggable Authentication".

           The --get-server-public-key option was added in MySQL 5.7.23.

       o   --host=host_name, -h host_name

           Connect to the MySQL server on the given host.

       o   --keys, -k

           Show table indexes.

       o   --login-path=name

           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 4.2.7, "Command-Line Options that Affect
           Option-File Handling".

       o   --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, if it exists, is read
           in all cases. This permits passwords to be specified in a safer way
           than on the command line even when --no-defaults is used.
           (.mylogin.cnf is created by the mysql_config_editor utility. See
           mysql_config_editor(1).)

           For additional information about this and other option-file
           options, see Section 4.2.7, "Command-Line Options that Affect
           Option-File Handling".

       o   --password[=password], -p[password]

           The password to use when connecting to the server. If you use the
           short option form (-p), you cannot have a space between the option
           and the password. If you omit the password value following the
           --password or -p option on the command line, mysqlshow prompts for
           one.

           Specifying a password on the command line should be considered
           insecure. See Section 6.1.2.1, "End-User Guidelines for Password
           Security". You can use an option file to avoid giving the password
           on the command line.

       o   --pipe, -W

           On Windows, connect to the server using a named pipe. This option
           applies only if the server supports named-pipe connections.

       o   --plugin-dir=dir_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 mysqlshow does not find it. See Section 6.3.9,
           "Pluggable Authentication".

       o   --port=port_num, -P port_num

           The TCP/IP port number to use for the connection.

       o   --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 4.2.7, "Command-Line Options that Affect
           Option-File Handling".

       o   --protocol={TCP|SOCKET|PIPE|MEMORY}

           The connection protocol to use for connecting to the server. It is
           useful when the other connection parameters normally would cause a
           protocol to be used other than the one you want. For details on the
           permissible values, see Section 4.2.2, "Connecting to the MySQL
           Server".

       o   --secure-auth

           Do not send passwords to the server in old (pre-4.1) format. This
           prevents connections except for servers that use the newer password
           format.

           As of MySQL 5.7.5, this option is deprecated and will be removed in
           a future MySQL release. It is always enabled and attempting to
           disable it (--skip-secure-auth, --secure-auth=0) produces an error.
           Before MySQL 5.7.5, this option is enabled by default but can be
           disabled.

               Note
               Passwords that use the pre-4.1 hashing method are less secure
               than passwords that use the native password hashing method and
               should be avoided. Pre-4.1 passwords are deprecated and support
               for them was removed in MySQL 5.7.5. For account upgrade
               instructions, see Section 6.5.1.3, "Migrating Away from Pre-4.1
               Password Hashing and the mysql_old_password Plugin".

       o   --server-public-key-path=file_name

           The path name to a file containing a client-side copy of the public
           key required by the server for RSA key pair-based password
           exchange. The file must be in PEM format. 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 6.5.1.4, "SHA-256 Pluggable Authentication",
           and Section 6.5.1.5, "Caching SHA-2 Pluggable Authentication".

           The --server-public-key-path option was added in MySQL 5.7.23.

       o   --shared-memory-base-name=name

           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.

           The server must be started with the --shared-memory option to
           enable shared-memory connections.

       o   --show-table-type, -t

           Show a column indicating the table type, as in SHOW FULL TABLES.
           The type is BASE TABLE or VIEW.

       o   --socket=path, -S path

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

       o   --ssl*

           Options that begin with --ssl specify whether to connect to the
           server using SSL and indicate where to find SSL keys and
           certificates. See Section 6.4.2, "Command Options for Encrypted
           Connections".

       o   --status, -i

           Display extra information about each table.

       o   --tls-version=protocol_list

           The protocols permitted by the client for encrypted connections.
           The value is a comma-separated list containing one or more protocol
           names. The protocols that can be named for this option depend on
           the SSL library used to compile MySQL. For details, see
           Section 6.4.6, "Encrypted Connection Protocols and Ciphers".

           This option was added in MySQL 5.7.10.

       o   --user=user_name, -u user_name

           The MySQL user name to use when connecting to the server.

       o   --verbose, -v

           Verbose mode. Print more information about what the program does.
           This option can be used multiple times to increase the amount of
           information.

       o   --version, -V

           Display version information and exit.

COPYRIGHT
       Copyright (C) 1997, 2018, Oracle and/or its affiliates. All rights
       reserved.

       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/.



ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+--------------------------+
       |ATTRIBUTE TYPE |     ATTRIBUTE VALUE      |
       +---------------+--------------------------+
       |Availability   | database/mysql-57/client |
       +---------------+--------------------------+
       |Stability      | Uncommitted              |
       +---------------+--------------------------+
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/).



NOTES
       This software was built from source available at
       https://github.com/oracle/solaris-userland.  The original community
       source was downloaded from
       https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-boost-5.7.25.tar.gz

       Further information about this software can be found on the open source
       community website at https://dev.mysql.com/.



MySQL 5.7                         12/20/2018                      MYSQLSHOW(1)