mysqlshow - display database, table, and column information


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


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

   mysqlshow provides a command-line interface to several SQL SHOW
   statements. 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]]]

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

   *   If no table is given, all matching tables in the database are

   *   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] option file groups.
   mysqlshow also supports the options for processing option files

   *   --help, -?

       Display a help message and exit.

   *   --character-sets-dir=path, -c path

       The directory where character sets are installed.

   *   --compress, -C

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

   *   --count

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

   *   --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.

   *   --debug-check

       Print some debugging information when the program exits.

   *   --debug-info

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

   *   --default-auth=name

       Default authentication client-side plugin to use.

   *   --default-character-set=charset_name

       Use charset_name as the default character set.

   *   --defaults-extra-file=filename

       Set filename as the file to read default options from after the
       global defaults files has been read.  Must be given as first

   *   --defaults-file=filename

       Set filename as the file to read default options from, override
       global defaults files.  Must be given as first option.

   *   --defaults-group-suffix=suffix

       In addition to the groups named on the command line, read groups
       that have the given suffix.

   *   --host=host_name, -h host_name

       Connect to the MariaDB server on the given host.

   *   --keys, -k

       Show table indexes.

   *   --no-defaults

       Do not read default options from any option file. This must be
       given as the first argument.

   *   --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

       Specifying a password on the command line should be considered
       insecure. You can use an option file to avoid giving the password
       on the command line.

   *   --pipe, -W

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

   *   --plugin-dir=dir_name

       Directory for client-side plugins.

   *   --port=port_num, -P port_num

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

   *   --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.

   *   --print-defaults

       Print the program argument list and exit.  This must be given as
       the first argument.

   *   --show-table-type, -t

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

   *   --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.

   *   --ssl

       Enable SSL for connection (automatically enabled with other flags).
       Disable with --skip-ssl.

   *   --ssl-ca=name

       CA file in PEM format (check OpenSSL docs, implies --ssl).

   *   --ssl-capath=name

       CA directory (check OpenSSL docs, implies --ssl).

   *   --ssl-cert=name

       X509 cert in PEM format (check OpenSSL docs, implies --ssl).

   *   --ssl-cipher=name

       SSL cipher to use (check OpenSSL docs, implies --ssl).

   *   --ssl-key=name

       X509 key in PEM format (check OpenSSL docs, implies --ssl).

   *   --ssl-crl=name

       Certificate revocation list (check OpenSSL docs, implies --ssl).

   *   --ssl-crlpath=name

       Certificate revocation list path (check OpenSSL docs, implies

   *   --ssl-verify-server-cert

       Verify server's "Common Name" in its cert against hostname used
       when connecting. This option is disabled by default.

   *   --status, -i

       Display extra information about each table.

   *   --user=user_name, -u user_name

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

   *   --verbose, -v

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

   *   --version, -V

       Display version information and exit.


   Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc.,
   2010-2015 MariaDB Foundation

   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
   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


   For more information, please refer to the MariaDB Knowledge Base,
   available online at


   MariaDB Foundation (


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