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 12.4.5, “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]]]
  • 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, 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 described at Section, “Command-Line Options that Affect Option-File Handling”.

Table 4.7. mysqlshow Options

FormatOption FileDescriptionIntroductionDeprecatedRemoved
--bind-address=ip_addressbind-addressUse the specified network interface to connect to the MySQL Server5.5.8  
--compresscompressCompress all information sent between the client and the server   
--countcountShow the number of rows per table   
--debug[=debug_options]debugWrite a debugging log   
--debug-checkdebug-checkPrint debugging information when the program exits   
--debug-infodebug-infoPrint debugging information, memory and CPU statistics when the program exits   
--default-character-set=charset_namedefault-character-setUse charset_name as the default character set   
--help Display help message and exit   
--host=host_namehostConnect to the MySQL server on the given host   
--keyskeysShow table indexes   
--password[=password]passwordThe password to use when connecting to the server   
--pipe On Windows, connect to server using a named pipe   
--port=port_numportThe TCP/IP port number to use for the connection   
--protocol=typeprotocolThe connection protocol to use   
--show-table-type Show a column indicating the table type   
--socket=pathsocketFor connections to localhost   
--ssl-ca=file_namessl-caThe path to a file that contains a list of trusted SSL CAs   
--ssl-capath=directory_namessl-capathThe path to a directory that contains trusted SSL CA certificates in PEM format   
--ssl-cert=file_namessl-certThe name of the SSL certificate file to use for establishing a secure connection   
--ssl-cipher=cipher_listssl-cipherA list of allowable ciphers to use for SSL encryption   
--ssl-key=file_namessl-keyThe name of the SSL key file to use for establishing a secure connection   
--ssl-verify-server-certssl-verify-server-certThe server's Common Name value in its certificate is verified against the host name used when connecting to the server   
--statusstatusDisplay extra information about each table   
--user=user_name,userThe MySQL user name to use when connecting to the server   
--verbose Verbose mode   
--version Display version information and exit   
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