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 13.5.4, “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:
-
Display a help message and exit.
-
The directory where character sets are installed. See Section 5.11.1, “The Character Set Used for Data and Sorting”.
-
Compress all information sent between the client and the server if both support compression.
-
Show the number of rows per table. This can be slow for non-
MyISAMtables. This option was added in MySQL 5.0.6. -
--debug[=debug_options],-# [debug_options]Write a debugging log. The
debug_optionsstring often is'd:t:o,file_name'. -
--default-character-set=charset_nameUse
charset_nameas the default character set. See Section 5.11.1, “The Character Set Used for Data and Sorting”. -
--host=host_name,-hhost_nameConnect to the MySQL server on the given host.
-
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 thepasswordvalue following the--passwordor-poption on the command line, you are prompted for one.Specifying a password on the command line should be considered insecure. See Section 5.9.6, “Keeping Your Password Secure”.
-
The TCP/IP port number to use for the connection.
-
--protocol={TCP|SOCKET|PIPE|MEMORY}The connection protocol to use.
-
Show a column indicating the table type, as in
SHOW FULL TABLES. The type isBASE TABLEorVIEW. This option was added in MySQL 5.0.4. -
For 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 5.9.7.3, “SSL Command Options”. -
Display extra information about each table.
-
--user=user_name,-uuser_nameThe MySQL username to use when connecting to the server.
-
Verbose mode. Print more information about what the program does. This option can be used multiple times to increase the amount of information.
-
Display version information and exit.