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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 13.7.6, “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]
groups of an option file. For information about option files
used by MySQL programs, see Section 4.2.7, “Using Option Files”.
Table 4.14 mysqlshow Options
Format | Description | Introduced | Removed |
---|---|---|---|
--bind-address | Use specified network interface to connect to MySQL Server | ||
--compress | Compress all information sent between client and server | ||
--count | Show the number of rows per table | ||
--debug | Write debugging log | ||
--debug-check | Print debugging information when program exits | ||
--debug-info | Print debugging information, memory, and CPU statistics when program exits | ||
--default-auth | Authentication plugin to use | ||
--default-character-set | Specify default character set | ||
--defaults-extra-file | Read named option file in addition to usual option files | ||
--defaults-file | Read only named option file | ||
--defaults-group-suffix | Option group suffix value | ||
--enable-cleartext-plugin | Enable cleartext authentication plugin | ||
--get-server-public-key | Request RSA public key from server | 8.0.3 | |
--help | Display help message and exit | ||
--host | Connect to MySQL server on given host | ||
--keys | Show table indexes | ||
--login-path | Read login path options from .mylogin.cnf | ||
--no-defaults | Read no option files | ||
--password | Password to use when connecting to server | ||
--pipe | On Windows, connect to server using named pipe | ||
--plugin-dir | Directory where plugins are installed | ||
--port | TCP/IP port number for connection | ||
--print-defaults | Print default options | ||
--protocol | Connection protocol to use | ||
--secure-auth | Do not send passwords to server in old (pre-4.1) format | 8.0.3 | |
--server-public-key-path | Path name to file containing RSA public key | 8.0.4 | |
--shared-memory-base-name | The name of shared memory to use for shared-memory connections | ||
--show-table-type | Show a column indicating the table type | ||
--socket | For connections to localhost, the Unix socket file to use | ||
--ssl-ca | File that contains list of trusted SSL Certificate Authorities | ||
--ssl-capath | Directory that contains trusted SSL Certificate Authority certificate files | ||
--ssl-cert | File that contains X.509 certificate | ||
--ssl-cipher | List of permitted ciphers for connection encryption | ||
--ssl-crl | File that contains certificate revocation lists | ||
--ssl-crlpath | Directory that contains certificate revocation list files | ||
--ssl-fips-mode | Whether to enable FIPS mode on the client side | 8.0.11 | |
--ssl-key | File that contains X.509 key | ||
--ssl-mode | Security state of connection to server | ||
--status | Display extra information about each table | ||
--tls-version | Protocols permitted for encrypted connections | ||
--user | MySQL user name to use when connecting to server | ||
--verbose | Verbose mode | ||
--version | Display version information and exit |
--help
,-?
Display a help message and exit.
On a computer having multiple network interfaces, use this option to select which interface to use for connecting to the MySQL server.
The directory where character sets are installed. See Section 10.14, “Character Set Configuration”.
--compress
,-C
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-
MyISAM
tables.--debug[=
,debug_options
]-# [
debug_options
]Write a debugging log. A typical
debug_options
string isd:t:o,
. The default isfile_name
d:t:o
.Print some debugging information when the program exits.
Print debugging information and memory and CPU usage statistics when the program exits.
--default-character-set=
charset_name
Use
charset_name
as the default character set. See Section 10.14, “Character Set Configuration”.A hint about the client-side authentication plugin to use. See Section 6.3.10, “Pluggable Authentication”.
--defaults-extra-file=
file_name
Read this option file after the global option file but (on Unix) before the user option file. If the file does not exist or is otherwise inaccessible, an error occurs.
file_name
is interpreted relative to the current directory if given as a relative path name rather than a full path name.For additional information about this and other option-file options, see Section 4.2.8, “Command-Line Options that Affect Option-File Handling”.
Use only the given option file. If the file does not exist or is otherwise inaccessible, an error occurs.
file_name
is interpreted relative to the current directory if given as a relative path name rather than a full path name.Exception: Even with
--defaults-file
, client programs read.mylogin.cnf
.For additional information about this and other option-file options, see Section 4.2.8, “Command-Line Options that Affect Option-File Handling”.
Read not only the usual option groups, but also groups with the usual names and a suffix of
str
. For example, mysqlshow normally reads the[client]
and[mysqlshow]
groups. If the--defaults-group-suffix=_other
option is given, mysqlshow also reads the[client_other]
and[mysqlshow_other]
groups.For additional information about this and other option-file options, see Section 4.2.8, “Command-Line Options that Affect Option-File Handling”.
Enable the
mysql_clear_password
cleartext authentication plugin. (See Section 6.5.1.4, “Client-Side Cleartext Pluggable Authentication”.)Request from the server the RSA public key that it uses for key pair-based password exchange. This option applies to clients that connect to the server using an account that authenticates with the
caching_sha2_password
authentication plugin. For connections by such accounts, the server does not send the public key to the client unless requested. The option is ignored for accounts that do not authenticate with that plugin. It is also ignored if RSA-based password exchange is not needed, as is the case when the client connects to the server using a secure connection.If
--server-public-key-path=
is given and specifies a valid public key file, it takes precedence overfile_name
--get-server-public-key
.For information about the
caching_sha2_password
plugin, see Section 6.5.1.3, “Caching SHA-2 Pluggable Authentication”.--host=
,host_name
-h
host_name
Connect to the MySQL server on the given host.
--keys
,-k
Show table indexes.
Read options from the named login path in the
.mylogin.cnf
login path file. A “login path” is an option group containing options that specify which MySQL server to connect to and which account to authenticate as. To create or modify a login path file, use the mysql_config_editor utility. See Section 4.6.7, “mysql_config_editor — MySQL Configuration Utility”.For additional information about this and other option-file options, see Section 4.2.8, “Command-Line Options that Affect Option-File Handling”.
Do not read any option files. If program startup fails due to reading unknown options from an option file,
--no-defaults
can be used to prevent them from being read.The exception is that the
.mylogin.cnf
file, if it exists, is read in all cases. This permits passwords to be specified in a safer way than on the command line even when--no-defaults
is used. (.mylogin.cnf
is created by the mysql_config_editor utility. See Section 4.6.7, “mysql_config_editor — MySQL Configuration Utility”.)For additional information about this and other option-file options, see Section 4.2.8, “Command-Line Options that Affect Option-File Handling”.
--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 thepassword
value following the--password
or-p
option on the command line, mysqlshow prompts for one.Specifying a password on the command line should be considered insecure. See Section 6.1.2.1, “End-User Guidelines for Password Security”. You can use an option file to avoid giving the password on the command line.
--pipe
,-W
On Windows, connect to the server using a named pipe. This option applies only if the server supports named-pipe connections.
The directory in which to look for plugins. Specify this option if the
--default-auth
option is used to specify an authentication plugin but mysqlshow does not find it. See Section 6.3.10, “Pluggable Authentication”.--port=
,port_num
-P
port_num
The TCP/IP port number to use for the connection.
Print the program name and all options that it gets from option files.
For additional information about this and other option-file options, see Section 4.2.8, “Command-Line Options that Affect Option-File Handling”.
--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 permissible values, see Section 4.2.2, “Connecting to the MySQL Server”.
This option was removed in MySQL 8.0.3.
--server-public-key-path=
file_name
The path name to a file containing a client-side copy of the public key required by the server for RSA key pair-based password exchange. The file must be in PEM format. This option applies to clients that authenticate with the
sha256_password
orcaching_sha2_password
authentication plugin. This option is ignored for accounts that do not authenticate with one of those plugins. It is also ignored if RSA-based password exchange is not used, as is the case when the client connects to the server using a secure connection.If
--server-public-key-path=
is given and specifies a valid public key file, it takes precedence overfile_name
--get-server-public-key
.For
sha256_password
, this option applies only if MySQL was built using OpenSSL.For information about the
sha256_password
andcaching_sha2_password
plugins, see Section 6.5.1.2, “SHA-256 Pluggable Authentication”, and Section 6.5.1.3, “Caching SHA-2 Pluggable Authentication”.--shared-memory-base-name=
name
On Windows, the shared-memory name to use, for connections made using shared memory to a local server. The default value is
MYSQL
. The shared-memory name is case-sensitive.The server must be started with the
--shared-memory
option to enable shared-memory connections.Show a column indicating the table type, as in
SHOW FULL TABLES
. The type isBASE TABLE
orVIEW
.--socket=
,path
-S
path
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
--ssl
specify whether to connect to the server using SSL and indicate where to find SSL keys and certificates. See Section 6.4.2, “Command Options for Encrypted Connections”.--ssl-fips-mode={OFF|ON|STRICT}
Controls whether to enable FIPS mode on the client side. The
--ssl-fips-mode
option differs from other--ssl-
options in that it is not used to establish encrypted connections, but rather to affect which cryptographic operations are permitted. See Section 6.6, “FIPS Support”.xxx
These
--ssl-fips-mode
values are permitted:OFF
: Disable FIPS mode.ON
: Enable FIPS mode.STRICT
: Enable “strict” FIPS mode.
NoteIf the OpenSSL FIPS Object Module is not available, the only permitted value for
--ssl-fips-mode
isOFF
. In this case, setting--ssl-fips-mode
toON
orSTRICT
causes the client to produce a warning at startup and to operate in non-FIPS mode.--status
,-i
Display extra information about each table.
The protocols permitted by the client for encrypted connections. The value is a list of one or more comma-separated protocol names. The protocols that can be named for this option depend on the SSL library used to compile MySQL. For details, see Section 6.4.6, “Encrypted Connection Protocols and Ciphers”.
--user=
,user_name
-u
user_name
The MySQL user name to use when connecting to the server.
--verbose
,-v
Verbose mode. Print more information about what the program does. This option can be used multiple times to increase the amount of information.
--version
,-V
Display version information and exit.
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Document créé le 26/06/2006, dernière modification le 26/10/2018
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