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 5.4, “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]]]

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

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

•   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:

Table 4.7. mysqlimport Option Reference

Format | Config File | Description | Introduced
--columns=column_list | columns | This option takes a comma-separated list of column names as its value |
--fields-enclosed-by=string | fields-enclosed-by | This option has the same meaning as the corresponding clause for LOAD DATA INFILE |
--fields-escaped-by | fields-escaped-by | This option has the same meaning as the corresponding clause for LOAD DATA INFILE |
--fields-optionally-enclosed-by=string | fields-optionally-enclosed-by | This option has the same meaning as the corresponding clause for LOAD DATA INFILE |
--fields-terminated-by=string | fields-terminated-by | -- This option has the same meaning as the corresponding clause for LOAD DATA INFILE |
--force | force | Continue even if an SQL error occurs |
-f |  |  |
--help |  | Display help message and exit |
-? |  |  |
--host=host_name | host | Connect to the MySQL server on the given host |
-h host_name |  |  |
-c columns_list |  |  |
--ignore | ignore | See the description for the --replace option |
-i |  |  |
--ignore-lines=N | ignore-lines | Ignore the first N lines of the data file |
--lines-terminated-by=string | lines-terminated-by | This option has the same meaning as the corresponding clause for LOAD DATA INFILE |
--local | local | Read input files locally from the client host |
-L |  |  |
--lock-tables | lock-tables | Lock all tables for writing before processing any text files |
-l |  |  |
--low-priority | low-priority | Use LOW_PRIORITY when loading the table. |
--password[=password] | password | The password to use when connecting to the server |
--compress | compress | Compress all information sent between the client and the server |
-p[password] |  |  |
--port=port_num | port | The TCP/IP port number to use for the connection |
-P port_num |  |  |
--protocol={TCP|SOCKET|PIPE|MEMORY} | protocol | The connection protocol to use |
--replace | replace | The --replace and --ignore options control handling of input rows that duplicate existing rows on unique key values |
--silent | silent | Produce output only when errors occur |
-s |  |  |
--socket=path | socket | For connections to localhost |
-S path |  |  |
--ssl-ca=file_name | ssl-ca | The path to a file that contains a list of trusted SSL CAs |
-C |  |  |
--ssl-capath=directory_name | ssl-capath | The path to a directory that contains trusted SSL CA certificates in PEM format |
--ssl-cert=file_name | ssl-cert | The name of the SSL certificate file to use for establishing a secure connection |
--ssl-cipher=cipher_list | ssl-cipher | A list of allowable ciphers to use for SSL encryption |
--ssl-key=file_name | ssl-key | The name of the SSL key file to use for establishing a secure connection |
--ssl-verify-server-cert | ssl-verify-server-cert | The server's Common Name value in its certificate is verified against the hostname used when connecting to the server |
--user=user_name, | user | The MySQL username to use when connecting to the server |
-u user_name |  |  |
--verbose |  | Verbose mode |
-v |  |  |
--version |  | Display version information and exit |
-# [debug_options] | debug | Write a debugging log |
-V |  |  |
--debug[=debug_options] |  |  |
--default-character-set=charset_name | default-character-set | Use charset_name as the default character set |
--delete | delete | Empty the table before importing the text file |
-D |  |  |

•   --help, -?

    Display a help message and exit.

•   --character-sets-dir=path

    The directory where character sets are installed. See Section 2, “The Character Set Used for Data and Sorting”.

•   --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 tables. This option was added in MySQL 5.0.6.

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

    Write a debugging log. The debug_options string often is 'd:t:o,file_name'.

•   --default-character-set=charset_name

    Use charset_name as the default character set. See Section 2, “The Character Set Used for Data and Sorting”.

•   --host=host_name, -h host_name

    Connect to the MySQL server on the given host.

•   --keys, -k

    Show table indexes.

•   --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, you are prompted for one.

    Specifying a password on the command line should be considered insecure. See Section 5.6, “Keeping Your Password Secure”.

    Specifying a password on the command line should be considered insecure. See Section 5.6, “Keeping Your Password Secure”.

•   --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.

•   --show-table-type, -t

    Show a column indicating the table type, as in SHOW FULL TABLES. The type is BASE TABLE or VIEW. This option was added in MySQL 5.0.4.

•   --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*

    Options that begin with --ssl specify whether to connect to the server via SSL and indicate where to find SSL keys and certificates. See Section 5.7.3, “SSL Command Options”.

•   --status, -i

    Display extra information about each table.

•   --user=user_name, -u user_name

    The MySQL username 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 information.

•   --version, -V

    Display version information and exit.

COPYRIGHT

Copyright 2007-2008 MySQL AB

This documentation is free software; you can redistribute it and/or modify it 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
MySQL AB (http://www.mysql.com/).