4.5.6. mysqlshow — Display Database, Table, and Column Information

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]]]

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. mysqlshow also supports the options for processing option files described at Section, "Command-Line Options that Affect Option-File Handling".

Table 4.9. mysqlshow Options

Format Option File Description
--bind-address=ip_address bind-address Use the specified network interface to connect to the MySQL Server
--compress compress Compress all information sent between the client and the server
--count count Show the number of rows per table
--debug[=debug_options] debug Write a debugging log
--debug-check debug-check Print debugging information when the program exits
--debug-info debug-info Print debugging information, memory and CPU statistics when the program exits
--default-auth=plugin default-auth=plugin The authentication plugin to use
--default-character-set=charset_name default-character-set Use charset_name as the default character set
--help Display help message and exit
--host=host_name host Connect to the MySQL server on the given host
--keys keys Show table indexes
--login-path=name Read login path options from .mylogin.cnf
--password[=password] password The password to use when connecting to the server
--pipe On Windows, connect to server using a named pipe
--plugin-dir=path plugin-dir=path The directory where plugins are located
--port=port_num port The TCP/IP port number to use for the connection
--protocol=type protocol The connection protocol to use
--show-table-type Show a column indicating the table type
--socket=path socket For connections to localhost
--ssl-ca=file_name ssl-ca The path to a file that contains a list of trusted SSL CAs
--ssl-capath=dir_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-crl=file_name ssl-crl The path to a file that contains certificate revocation lists
--ssl-crlpath=dir_name ssl-crlpath The path to a directory that contains certificate revocation list files
--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 host name used when connecting to the server
--status status Display extra information about each table
--user=user_name, user MySQL user name to use when connecting to server
--verbose Verbose mode
--version Display version information and exit

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