- MySQL 5.1 Reference Manual :: 4 MySQL Programs :: 4.5 MySQL Client Programs :: 4.5.6 mysqlshow — Display Database, Table, and Column Information
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- MySQL 5.1 Reference Manual
- Preface, Notes, Licenses
- 1 General Information
- 2 Installing and Upgrading MySQL
- 3 Tutorial
- 4 MySQL Programs
- 5 MySQL Server Administration
- 6 Backup and Recovery
- 7 Optimization
- 8 Language Structure
- 9 Internationalization and Localization
- 10 Data Types
- 11 Functions and Operators
- 12 SQL Statement Syntax
- 13 Storage Engines
- 14 High Availability and Scalability
- 15 MySQL Enterprise Monitor
- 16 Replication
- 17 MySQL Cluster NDB 6.X/7.X
- 18 Partitioning
- 19 Stored Programs and Views
- 20 INFORMATION_SCHEMA Tables
- 21 Connectors and APIs
- 22 Extending MySQL
- A MySQL 5.1 Frequently Asked Questions
- B Errors, Error Codes, and Common Problems
- C MySQL Change History
- D Restrictions and Limits
- Index
- Standard Index
- C Function Index
- Command Index
- Function Index
- INFORMATION_SCHEMA Index
- Transaction Isolation Level Index
- JOIN Types Index
- Operator Index
- Option Index
- Privileges Index
- SQL Modes Index
- Status Variable Index
- Statement/Syntax Index
- System Variable Index
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
SHOWstatements. See Section 12.4.5, “SHOWSyntax”. 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 4.2.3.3.1, “Command-Line Options that Affect Option-File Handling”.Table 4.7.
mysqlshowOptionsFormat Config File Description Introduction Deprecated Removed --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 5.1.21 --debug-info debug-info Print debugging information, memory and CPU statistics when the program exits 5.1.14 --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 --password[=password] password The password to use when connecting to the server --pipe On Windows, connect to server via a named pipe --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=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 host name used when connecting to the server --status status Display extra information about each table --user=user_name, user The MySQL user name to use when connecting to the server --verbose Verbose mode --version Display version information and exit -
--help,-?Display a help message and exit.
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The directory where character sets are installed. See Section 9.5, “Character Set Configuration”.
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--compress,-CCompress all information sent between the client and the server if both support compression.
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Show the number of rows per table. This can be slow for non-
MyISAMtables. -
--debug[=,debug_options]-# [debug_options]Write a debugging log. A typical
debug_optionsstring is'd:t:o,. The default isfile_name''d:t:o'. -
Print some debugging information when the program exits. This option was added in MySQL 5.1.21.
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Print debugging information and memory and CPU usage statistics when the program exits. This option was added in MySQL 5.1.14.
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--default-character-set=charset_nameUse
charset_nameas the default character set. See Section 9.5, “Character Set Configuration”. -
--host=,host_name-hhost_nameConnect to the MySQL server on the given host.
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--keys,-kShow table indexes.
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--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 thepasswordvalue following the--passwordor-poption on the command line, mysqlshow prompts for one.Specifying a password on the command line should be considered insecure. See Section 5.3.2.2, “End-User Guidelines for Password Security”. You can use an option file to avoid giving the password on the command line.
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--pipe,-WOn Windows, connect to the server via a named pipe. This option applies only if the server supports named-pipe connections.
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--port=,port_num-Pport_numThe TCP/IP port number to use for the connection.
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--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 allowable values, see Section 4.2.2, “Connecting to the MySQL Server”.
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Show a column indicating the table type, as in
SHOW FULL TABLES. The type isBASE TABLEorVIEW. -
--socket=,path-SpathFor connections to
localhost, the Unix socket file to use, or, on Windows, the name of the named pipe to use. -
Options that begin with
--sslspecify whether to connect to the server via SSL and indicate where to find SSL keys and certificates. See Section 5.5.6.3, “SSL Command Options”. -
--status,-iDisplay extra information about each table.
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--user=,user_name-uuser_nameThe MySQL user name to use when connecting to the server.
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--verbose,-vVerbose mode. Print more information about what the program does. This option can be used multiple times to increase the amount of information.
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--version,-VDisplay version information and exit.