1MYSQLSHOW(1) MySQL Database System MYSQLSHOW(1)
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6 mysqlshow - display database, table, and column information
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9 mysqlshow [options] [db_name [tbl_name [col_name]]]
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12 The mysqlshow client can be used to quickly see which databases exist,
13 their tables, or a table's columns or indexes.
14 mysqlshow provides a command-line interface to several SQL SHOW
16 statements. See Section 13.7.6, “SHOW Syntax”. The same information can
17 be obtained by using those statements directly. For example, you can
18 issue them from the mysql client program.
19 Invoke mysqlshow like this:
21 shell> mysqlshow [options] [db_name [tbl_name [col_name]]]
23 · If no database is given, a list of database names is shown.
25 · If no table is given, all matching tables in the database are
27 shown.
28 · If no column is given, all matching columns and column types in the
30 table are shown.
31 The output displays only the names of those databases, tables, or
33 columns for which you have some privileges.
34 If the last argument contains shell or SQL wildcard characters (*, ?,
36 %, or _), only those names that are matched by the wildcard are shown.
37 If a database name contains any underscores, those should be escaped
38 with a backslash (some Unix shells require two) to get a list of the
39 proper tables or columns. * and ? characters are converted into SQL %
40 and _ wildcard characters. This might cause some confusion when you try
41 to display the columns for a table with a _ in the name, because in
42 this case, mysqlshow shows you only the table names that match the
43 pattern. This is easily fixed by adding an extra % last on the command
44 line as a separate argument.
45 mysqlshow supports the following options, which can be specified on the
47 command line or in the [mysqlshow] and [client] groups of an option
48 file. For information about option files used by MySQL programs, see
49 Section 4.2.7, “Using Option Files”.
50 · --help, -?
52 Display a help message and exit.
54 · --bind-address=ip_address
56 On a computer having multiple network interfaces, use this option
58 to select which interface to use for connecting to the MySQL
59 server.
60 · --character-sets-dir=dir_name
62 The directory where character sets are installed. See
64 Section 10.14, “Character Set Configuration”.
65 · --compress, -C
67 Compress all information sent between the client and the server if
69 both support compression.
70 · --count
72 Show the number of rows per table. This can be slow for non-MyISAM
74 tables.
75 · --debug[=debug_options], -# [debug_options]
77 Write a debugging log. A typical debug_options string is
79 d:t:o,file_name. The default is d:t:o.
80 · --debug-check
82 Print some debugging information when the program exits.
84 · --debug-info
86 Print debugging information and memory and CPU usage statistics
88 when the program exits.
89 · --default-character-set=charset_name
91 Use charset_name as the default character set. See Section 10.14,
93 “Character Set Configuration”.
94 · --default-auth=plugin
96 A hint about the client-side authentication plugin to use. See
98 Section 6.3.10, “Pluggable Authentication”.
99 · --defaults-extra-file=file_name
101 Read this option file after the global option file but (on Unix)
103 before the user option file. If the file does not exist or is
104 otherwise inaccessible, an error occurs. file_name is interpreted
105 relative to the current directory if given as a relative path name
106 rather than a full path name.
107 For additional information about this and other option-file
109 options, see Section 4.2.8, “Command-Line Options that Affect
110 Option-File Handling”.
111 · --defaults-file=file_name
113 Use only the given option file. If the file does not exist or is
115 otherwise inaccessible, an error occurs. file_name is interpreted
116 relative to the current directory if given as a relative path name
117 rather than a full path name.
118 Exception: Even with --defaults-file, client programs read
120 .mylogin.cnf.
121 For additional information about this and other option-file
123 options, see Section 4.2.8, “Command-Line Options that Affect
124 Option-File Handling”.
125 · --defaults-group-suffix=str
127 Read not only the usual option groups, but also groups with the
129 usual names and a suffix of str. For example, mysqlshow normally
130 reads the [client] and [mysqlshow] groups. If the
131 --defaults-group-suffix=_other option is given, mysqlshow also
132 reads the [client_other] and [mysqlshow_other] groups.
133 For additional information about this and other option-file
135 options, see Section 4.2.8, “Command-Line Options that Affect
136 Option-File Handling”.
137 · --enable-cleartext-plugin
139 Enable the mysql_clear_password cleartext authentication plugin.
141 (See Section 6.5.1.4, “Client-Side Cleartext Pluggable
142 Authentication”.)
143 · --get-server-public-key
145 Request from the server the RSA public key that it uses for key
147 pair-based password exchange. This option applies to clients that
148 connect to the server using an account that authenticates with the
149 caching_sha2_password authentication plugin. For connections by
150 such accounts, the server does not send the public key to the
151 client unless requested. The option is ignored for accounts that do
152 not authenticate with that plugin. It is also ignored if RSA-based
153 password exchange is not needed, as is the case when the client
154 connects to the server using a secure connection.
155 If --server-public-key-path=file_name is given and specifies a
157 valid public key file, it takes precedence over
158 --get-server-public-key.
159 For information about the caching_sha2_password plugin, see
161 Section 6.5.1.3, “Caching SHA-2 Pluggable Authentication”.
162 · --host=host_name, -h host_name
164 Connect to the MySQL server on the given host.
166 · --keys, -k
168 Show table indexes.
170 · --login-path=name
172 Read options from the named login path in the .mylogin.cnf login
174 path file. A “login path” is an option group containing options
175 that specify which MySQL server to connect to and which account to
176 authenticate as. To create or modify a login path file, use the
177 mysql_config_editor utility. See mysql_config_editor(1).
178 For additional information about this and other option-file
180 options, see Section 4.2.8, “Command-Line Options that Affect
181 Option-File Handling”.
182 · --no-defaults
184 Do not read any option files. If program startup fails due to
186 reading unknown options from an option file, --no-defaults can be
187 used to prevent them from being read.
188 The exception is that the .mylogin.cnf file, if it exists, is read
190 in all cases. This permits passwords to be specified in a safer way
191 than on the command line even when --no-defaults is used.
192 (.mylogin.cnf is created by the mysql_config_editor utility. See
193 mysql_config_editor(1).)
194 For additional information about this and other option-file
196 options, see Section 4.2.8, “Command-Line Options that Affect
197 Option-File Handling”.
198 · --password[=password], -p[password]
200 The password to use when connecting to the server. If you use the
202 short option form (-p), you cannot have a space between the option
203 and the password. If you omit the password value following the
204 --password or -p option on the command line, mysqlshow prompts for
205 one.
206 Specifying a password on the command line should be considered
208 insecure. See Section 6.1.2.1, “End-User Guidelines for Password
209 Security”. You can use an option file to avoid giving the password
210 on the command line.
211 · --pipe, -W
213 On Windows, connect to the server using a named pipe. This option
215 applies only if the server supports named-pipe connections.
216 · --plugin-dir=dir_name
218 The directory in which to look for plugins. Specify this option if
220 the --default-auth option is used to specify an authentication
221 plugin but mysqlshow does not find it. See Section 6.3.10,
222 “Pluggable Authentication”.
223 · --port=port_num, -P port_num
225 The TCP/IP port number to use for the connection.
227 · --print-defaults
229 Print the program name and all options that it gets from option
231 files.
232 For additional information about this and other option-file
234 options, see Section 4.2.8, “Command-Line Options that Affect
235 Option-File Handling”.
236 · --protocol={TCP|SOCKET|PIPE|MEMORY}
238 The connection protocol to use for connecting to the server. It is
240 useful when the other connection parameters normally would cause a
241 protocol to be used other than the one you want. For details on the
242 permissible values, see Section 4.2.2, “Connecting to the MySQL
243 Server”.
244 · --secure-auth
246 This option was removed in MySQL 8.0.3.
248 · --server-public-key-path=file_name
250 The path name to a file containing a client-side copy of the public
252 key required by the server for RSA key pair-based password
253 exchange. The file must be in PEM format. This option applies to
254 clients that authenticate with the sha256_password or
255 caching_sha2_password authentication plugin. This option is ignored
256 for accounts that do not authenticate with one of those plugins. It
257 is also ignored if RSA-based password exchange is not used, as is
258 the case when the client connects to the server using a secure
259 connection.
260 If --server-public-key-path=file_name is given and specifies a
262 valid public key file, it takes precedence over
263 --get-server-public-key.
264 For sha256_password, this option applies only if MySQL was built
266 using OpenSSL.
267 For information about the sha256_password and caching_sha2_password
269 plugins, see Section 6.5.1.2, “SHA-256 Pluggable Authentication”,
270 and Section 6.5.1.3, “Caching SHA-2 Pluggable Authentication”.
271 · --shared-memory-base-name=name
273 On Windows, the shared-memory name to use, for connections made
275 using shared memory to a local server. The default value is MYSQL.
276 The shared-memory name is case-sensitive.
277 The server must be started with the --shared-memory option to
279 enable shared-memory connections.
280 · --show-table-type, -t
282 Show a column indicating the table type, as in SHOW FULL TABLES.
284 The type is BASE TABLE or VIEW.
285 · --socket=path, -S path
287 For connections to localhost, the Unix socket file to use, or, on
289 Windows, the name of the named pipe to use.
290 · --ssl*
292 Options that begin with --ssl specify whether to connect to the
294 server using SSL and indicate where to find SSL keys and
295 certificates. See Section 6.4.2, “Command Options for Encrypted
296 Connections”.
297 · --ssl-fips-mode={OFF|ON|STRICT} Controls whether to enable FIPS
299 mode on the client side. The --ssl-fips-mode option differs from
300 other --ssl-xxx options in that it is not used to establish
301 encrypted connections, but rather to affect which cryptographic
302 operations are permitted. See Section 6.6, “FIPS Support”.
303 These --ssl-fips-mode values are permitted:
305 · OFF: Disable FIPS mode.
307 · ON: Enable FIPS mode.
309 · STRICT: Enable “strict” FIPS mode.
311 Note
314 If the OpenSSL FIPS Object Module is not available, the only
315 permitted value for --ssl-fips-mode is OFF. In this case,
316 setting --ssl-fips-mode to ON or STRICT causes the client to
317 produce a warning at startup and to operate in non-FIPS mode.
318 · --status, -i
320 Display extra information about each table.
322 · --tls-ciphersuites=ciphersuite_list
324 For client programs, specifies which TLSv1.3 ciphersuites the
326 client permits for encrypted connections. The value is a list of
327 one or more colon-separated ciphersuite names. The ciphersuites
328 that can be named for this option depend on the SSL library used to
329 compile MySQL. For details, see Section 6.4.6, “Encrypted
330 Connection Protocols and Ciphers”.
331 This option was added in MySQL 8.0.16.
333 · --tls-version=protocol_list
335 The protocols the client permits for encrypted connections. The
337 value is a list of one or more comma-separated protocol names. The
338 protocols that can be named for this option depend on the SSL
339 library used to compile MySQL. For details, see Section 6.4.6,
340 “Encrypted Connection Protocols and Ciphers”.
341 · --user=user_name, -u user_name
343 The MySQL user name to use when connecting to the server.
345 · --verbose, -v
347 Verbose mode. Print more information about what the program does.
349 This option can be used multiple times to increase the amount of
350 information.
351 · --version, -V
353 Display version information and exit.
355
357 Copyright © 1997, 2019, Oracle and/or its affiliates. All rights
358 reserved.
359 This documentation is free software; you can redistribute it and/or
361 modify it only under the terms of the GNU General Public License as
362 published by the Free Software Foundation; version 2 of the License.
363 This documentation is distributed in the hope that it will be useful,
365 but WITHOUT ANY WARRANTY; without even the implied warranty of
366 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
367 General Public License for more details.
368 You should have received a copy of the GNU General Public License along
370 with the program; if not, write to the Free Software Foundation, Inc.,
371 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see
372 http://www.gnu.org/licenses/.
373
376 For more information, please refer to the MySQL Reference Manual, which
377 may already be installed locally and which is also available online at
378 http://dev.mysql.com/doc/.
379
381 Oracle Corporation (http://dev.mysql.com/).
382MySQL 8.0 02/20/2019 MYSQLSHOW(1)