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mysqldump.1
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'\" t
.\" Title: \fBmysqldump\fR
.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.77.1 <http://docbook.sf.net/>
.\" Date: 01/22/2013
.\" Manual: MySQL Database System
.\" Source: MySQL 5.6
.\" Language: English
.\"
.TH "\FBMYSQLDUMP\FR" "1" "01/22/2013" "MySQL 5\&.6" "MySQL Database System"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.\" mysqldump
.\" dumping: databases and tables
.\" backups: databases and tables
.\" databases: dumping
.\" tables: dumping
.SH "NAME"
mysqldump \- a database backup program
.SH "SYNOPSIS"
.HP \w'\fBmysqldump\ [\fR\fB\fIoptions\fR\fR\fB]\ [\fR\fB\fIdb_name\fR\fR\fB\ [\fR\fB\fItbl_name\fR\fR\fB\ \&.\&.\&.]]\fR\ 'u
\fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] [\fR\fB\fIdb_name\fR\fR\fB [\fR\fB\fItbl_name\fR\fR\fB \&.\&.\&.]]\fR
.SH "DESCRIPTION"
.PP
The
\fBmysqldump\fR
client is a utility that performs
logical backups, producing a set of SQL statements that can be run to reproduce the original schema objects, table data, or both\&. It dumps one or more MySQL database for backup or transfer to another SQL server\&. The
\fBmysqldump\fR
command can also generate output in CSV, other delimited text, or XML format\&.
.PP
\fBmysqldump\fR
requires at least the
SELECT
privilege for dumped tables,
SHOW VIEW
for dumped views, and
LOCK TABLES
if the
\fB\-\-single\-transaction\fR
option is not used\&. Certain options might require other privileges as noted in the option descriptions\&.
Performance and Scalability Considerations
.PP
mysqldump
advantages include the convenience and flexibility of viewing or even editing the output before restoring\&. You can clone databases for development and DBA work, or produce slight variations of an existing database for testing\&. It is not intended as a fast or scalable solution for backing up substantial amounts of data\&. With large data sizes, even if the backup step takes a reasonable time, restoring the data can be very slow because replaying the SQL statements involves disk I/O for insertion, index creation, and so on\&.
.PP
For large\-scale backup and restore, a
physical
backup is more appropriate, to copy the data files in their original format that can be restored quickly:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
If your tables are primarily
InnoDB
tables, or if you have a mix of
InnoDB
and
MyISAM
tables, consider using the
\fBmysqlbackup\fR
command of the MySQL Enterprise Backup product\&. (Available as part of the Enterprise subscription\&.) It provides the best performance for
InnoDB
backups with minimal disruption; it can also back up tables from
MyISAM
and other storage engines; and it provides a number of convenient options to accommodate different backup scenarios\&. See
\m[blue]\fBMySQL Enterprise Backup User\*(Aqs Guide (Version 3\&.8)\fR\m[]\&\s-2\u[1]\d\s+2\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
If your tables are primarily
MyISAM
tables, consider using the
\fBmysqlhotcopy\fR
instead, for better performance than
\fBmysqldump\fR
of backup and restore operations\&. See
\fBmysqlhotcopy\fR(1)\&.
.RE
.PP
\fBmysqldump\fR
can retrieve and dump table contents row by row, or it can retrieve the entire content from a table and buffer it in memory before dumping it\&. Buffering in memory can be a problem if you are dumping large tables\&. To dump tables row by row, use the
\fB\-\-quick\fR
option (or
\fB\-\-opt\fR, which enables
\fB\-\-quick\fR)\&. The
\fB\-\-opt\fR
option (and hence
\fB\-\-quick\fR) is enabled by default, so to enable memory buffering, use
\fB\-\-skip\-quick\fR\&.
.PP
If you are using a recent version of
\fBmysqldump\fR
to generate a dump to be reloaded into a very old MySQL server, use the
\fB\-\-skip\-opt\fR
option instead of the
\fB\-\-opt\fR
or
\fB\-\-extended\-insert\fR
option\&.
.PP
For additional information about
\fBmysqldump\fR, see
Section\ \&7.4, \(lqUsing mysqldump for Backups\(rq\&.
Syntax
.PP
There are three general ways to invoke
\fBmysqldump\fR, to dump progressively more data:
.sp
.if n \{\
.RS 4
.\}
.nf
shell> \fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] \fR\fB\fIdb_name\fR\fR\fB [\fR\fB\fItbl_name\fR\fR\fB \&.\&.\&.]\fR
shell> \fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] \-\-databases \fR\fB\fIdb_name\fR\fR\fB \&.\&.\&.\fR
shell> \fBmysqldump [\fR\fB\fIoptions\fR\fR\fB] \-\-all\-databases\fR
.fi
.if n \{\
.RE
.\}
.PP
To dump entire databases, do not name any tables following
\fIdb_name\fR, or use the
\fB\-\-databases\fR
or
\fB\-\-all\-databases\fR
option\&.
.PP
To see a list of the options your version of
\fBmysqldump\fR
supports, issue the command
\fBmysqldump \-\-help\fR\&.
Option Syntax \- Alphabetical Summary
.PP
\fBmysqldump\fR
supports the following options, which can be specified on the command line or in the
[mysqldump]
and
[client]
groups of an option file\&.
\fBmysqldump\fR
also supports the options for processing option files described at
Section\ \&4.2.3.4, \(lqCommand-Line Options that Affect Option-File Handling\(rq\&.
Connection Options
.PP
The
\fBmysqldump\fR
command logs into a MySQL server to extract information\&. The following options specify how to connect to the MySQL server, either on the same machine or a remote system\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: bind-address option
.\" bind-address option: mysqldump
\fB\-\-bind\-address=\fR\fB\fIip_address\fR\fR
.sp
On a computer having multiple network interfaces, this option can be used to select which interface is employed when connecting to the MySQL server\&.
.sp
This option is supported beginning with MySQL 5\&.6\&.1\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: compress option
.\" compress option: mysqldump
\fB\-\-compress\fR,
\fB\-C\fR
.sp
Compress all information sent between the client and the server if both support compression\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: default-auth option
.\" default-auth option: mysqldump
\fB\-\-default\-auth=\fR\fB\fIplugin\fR\fR
.sp
The client\-side authentication plugin to use\&. See
Section\ \&6.3.6, \(lqPluggable Authentication\(rq\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: host option
.\" host option: mysqldump
\fB\-\-host=\fR\fB\fIhost_name\fR\fR,
\fB\-h \fR\fB\fIhost_name\fR\fR
.sp
Dump data from the MySQL server on the given host\&. The default host is
localhost\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: password option
.\" password option: mysqldump
\fB\-\-password[=\fR\fB\fIpassword\fR\fR\fB]\fR,
\fB\-p[\fR\fB\fIpassword\fR\fR\fB]\fR
.sp
The password to use when connecting to the server\&. If you use the short option form (\fB\-p\fR), you
\fIcannot\fR
have a space between the option and the password\&. If you omit the
\fIpassword\fR
value following the
\fB\-\-password\fR
or
\fB\-p\fR
option on the command line,
\fBmysqldump\fR
prompts for one\&.
.sp
Specifying a password on the command line should be considered insecure\&. See
Section\ \&6.1.2.1, \(lqEnd-User Guidelines for Password Security\(rq\&. You can use an option file to avoid giving the password on the command line\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: pipe option
.\" pipe option: mysqldump
\fB\-\-pipe\fR,
\fB\-W\fR
.sp
On Windows, connect to the server using a named pipe\&. This option applies only if the server supports named\-pipe connections\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: plugin-dir option
.\" plugin-dir option: mysqldump
\fB\-\-plugin\-dir=\fR\fB\fIpath\fR\fR
.sp
The directory in which to look for plugins\&. It may be necessary to specify this option if the
\fB\-\-default\-auth\fR
option is used to specify an authentication plugin but
\fBmysqldump\fR
does not find it\&. See
Section\ \&6.3.6, \(lqPluggable Authentication\(rq\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: port option
.\" port option: mysqldump
\fB\-\-port=\fR\fB\fIport_num\fR\fR,
\fB\-P \fR\fB\fIport_num\fR\fR
.sp
The TCP/IP port number to use for the connection\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: protocol option
.\" protocol option: mysqldump
\fB\-\-protocol={TCP|SOCKET|PIPE|MEMORY}\fR
.sp
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, \(lqConnecting to the MySQL Server\(rq\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: socket option
.\" socket option: mysqldump
\fB\-\-socket=\fR\fB\fIpath\fR\fR,
\fB\-S \fR\fB\fIpath\fR\fR
.sp
For connections to
localhost, the Unix socket file to use, or, on Windows, the name of the named pipe to use\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: SSL options
.\" SSL options: mysqldump
\fB\-\-ssl*\fR
.sp
Options that begin with
\fB\-\-ssl\fR
specify whether to connect to the server using SSL and indicate where to find SSL keys and certificates\&. See
Section\ \&6.3.8.4, \(lqSSL Command Options\(rq\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: user option
.\" user option: mysqldump
\fB\-\-user=\fR\fB\fIuser_name\fR\fR,
\fB\-u \fR\fB\fIuser_name\fR\fR
.sp
The MySQL user name to use when connecting to the server\&.
.RE
.PP
You can also set the following variables by using
\fB\-\-\fR\fB\fIvar_name\fR\fR\fB=\fR\fB\fIvalue\fR\fR
syntax:
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
max_allowed_packet
.sp
The maximum size of the buffer for client/server communication\&. The maximum is 1GB\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
net_buffer_length
.sp
The initial size of the buffer for client/server communication\&. When creating multiple\-row
INSERT
statements (as with the
\fB\-\-extended\-insert\fR
or
\fB\-\-opt\fR
option),
\fBmysqldump\fR
creates rows up to
net_buffer_length
length\&. If you increase this variable, ensure that the
net_buffer_length
variable in the MySQL server is at least this large\&.
.RE
DDL Options
.PP
Usage scenarios for
\fBmysqldump\fR
include setting up an entire new MySQL instance (including database tables), and replacing data inside an existing instance with existing databases and tables\&. The following options let you specify which things to tear down and set up when restoring a dump, by encoding various DDL statements within the dump file\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: add-drop-database option
.\" add-drop-database option: mysqldump
\fB\-\-add\-drop\-database\fR
.sp
Add a
DROP DATABASE
statement before each
CREATE DATABASE
statement\&. This option is typically used in conjunction with the
\fB\-\-all\-databases\fR
or
\fB\-\-databases\fR
option because no
CREATE DATABASE
statements are written unless one of those options is specified\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: add-drop-table option
.\" add-drop-table option: mysqldump
\fB\-\-add\-drop\-table\fR
.sp
Add a
DROP TABLE
statement before each
CREATE TABLE
statement\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: add-drop-trigger option
.\" add-drop-trigger option: mysqldump
\fB\-\-add\-drop\-trigger\fR
.sp
Add a
DROP TRIGGER
statement before each
CREATE TRIGGER
statement\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: all-tablespaces option
.\" all-tablespaces option: mysqldump
\fB\-\-all\-tablespaces\fR,
\fB\-Y\fR
.sp
Adds to a table dump all SQL statements needed to create any tablespaces used by an
NDBCLUSTER
table\&. This information is not otherwise included in the output from
\fBmysqldump\fR\&. This option is currently relevant only to MySQL Cluster tables\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: no-create-db option
.\" no-create-db option: mysqldump
\fB\-\-no\-create\-db\fR,
\fB\-n\fR
.sp
This option suppresses the
CREATE DATABASE
statements that are otherwise included in the output if the
\fB\-\-databases\fR
or
\fB\-\-all\-databases\fR
option is given\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: no-create-info option
.\" no-create-info option: mysqldump
\fB\-\-no\-create\-info\fR,
\fB\-t\fR
.sp
Do not write
CREATE TABLE
statements that re\-create each dumped table\&.
.if n \{\
.sp
.\}
.RS 4
.it 1 an-trap
.nr an-no-space-flag 1
.nr an-break-flag 1
.br
.ps +1
\fBNote\fR
.ps -1
.br
This option does
\fInot\fR
not exclude statements creating log file groups or tablespaces from
\fBmysqldump\fR
output; however, you can use the
\fB\-\-no\-tablespaces\fR
option for this purpose\&.
.sp .5v
.RE
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: no-tablespaces option
.\" no-tablespaces option: mysqldump
\fB\-\-no\-tablespaces\fR,
\fB\-y\fR
.sp
This option suppresses all
CREATE LOGFILE GROUP
and
CREATE TABLESPACE
statements in the output of
\fBmysqldump\fR\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: replace option
.\" replace option: mysqldump
\fB\-\-replace\fR
.sp
Write
REPLACE
statements rather than
INSERT
statements\&.
.RE
Debug Options
.PP
The following options print debugging information, encode debugging information in the dump file, or let the dump operation proceed regardless of potential problems\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: allow-keywords option
.\" allow-keywords option: mysqldump
\fB\-\-allow\-keywords\fR
.sp
Permit creation of column names that are keywords\&. This works by prefixing each column name with the table name\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: comments option
.\" comments option: mysqldump
\fB\-\-comments\fR,
\fB\-i\fR
.sp
Write additional information in the dump file such as program version, server version, and host\&. This option is enabled by default\&. To suppress this additional information, use
\fB\-\-skip\-comments\fR\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: debug option
.\" debug option: mysqldump
\fB\-\-debug[=\fR\fB\fIdebug_options\fR\fR\fB]\fR,
\fB\-# [\fR\fB\fIdebug_options\fR\fR\fB]\fR
.sp
Write a debugging log\&. A typical
\fIdebug_options\fR
string is
\*(Aqd:t:o,\fIfile_name\fR\*(Aq\&. The default value is
\*(Aqd:t:o,/tmp/mysqldump\&.trace\*(Aq\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: debug-check option
.\" debug-check option: mysqldump
\fB\-\-debug\-check\fR
.sp
Print some debugging information when the program exits\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: debug-info option
.\" debug-info option: mysqldump
\fB\-\-debug\-info\fR
.sp
Print debugging information and memory and CPU usage statistics when the program exits\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: dump-date option
.\" dump-date option: mysqldump
\fB\-\-dump\-date\fR
.sp
If the
\fB\-\-comments\fR
option is given,
\fBmysqldump\fR
produces a comment at the end of the dump of the following form:
.sp
.if n \{\
.RS 4
.\}
.nf
\-\- Dump completed on \fIDATE\fR
.fi
.if n \{\
.RE
.\}
.sp
However, the date causes dump files taken at different times to appear to be different, even if the data are otherwise identical\&.
\fB\-\-dump\-date\fR
and
\fB\-\-skip\-dump\-date\fR
control whether the date is added to the comment\&. The default is
\fB\-\-dump\-date\fR
(include the date in the comment)\&.
\fB\-\-skip\-dump\-date\fR
suppresses date printing\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: force option
.\" force option: mysqldump
\fB\-\-force\fR,
\fB\-f\fR
.sp
Continue even if an SQL error occurs during a table dump\&.
.sp
One use for this option is to cause
\fBmysqldump\fR
to continue executing even when it encounters a view that has become invalid because the definition refers to a table that has been dropped\&. Without
\fB\-\-force\fR,
\fBmysqldump\fR
exits with an error message\&. With
\fB\-\-force\fR,
\fBmysqldump\fR
prints the error message, but it also writes an SQL comment containing the view definition to the dump output and continues executing\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: log-error option
.\" log-error option: mysqldump
\fB\-\-log\-error=\fR\fB\fIfile_name\fR\fR
.sp
Log warnings and errors by appending them to the named file\&. The default is to do no logging\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: skip-comments option
.\" skip-comments option: mysqldump
\fB\-\-skip\-comments\fR
.sp
See the description for the
\fB\-\-comments\fR
option\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: verbose option
.\" verbose option: mysqldump
\fB\-\-verbose\fR,
\fB\-v\fR
.sp
Verbose mode\&. Print more information about what the program does\&.
.RE
Help Options
.PP
The following options display information about the
\fBmysqldump\fR
command itself\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: help option
.\" help option: mysqldump
\fB\-\-help\fR,
\fB\-?\fR
.sp
Display a help message and exit\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: version option
.\" version option: mysqldump
\fB\-\-version\fR,
\fB\-V\fR
.sp
Display version information and exit\&.
.RE
Internationalization Options
.PP
The following options change how the
\fBmysqldump\fR
command represents character data with national language settings\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: character-sets-dir option
.\" character-sets-dir option: mysqldump
\fB\-\-character\-sets\-dir=\fR\fB\fIpath\fR\fR
.sp
The directory where character sets are installed\&. See
Section\ \&10.5, \(lqCharacter Set Configuration\(rq\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: default-character-set option
.\" default-character-set option: mysqldump
\fB\-\-default\-character\-set=\fR\fB\fIcharset_name\fR\fR
.sp
Use
\fIcharset_name\fR
as the default character set\&. See
Section\ \&10.5, \(lqCharacter Set Configuration\(rq\&. If no character set is specified,
\fBmysqldump\fR
uses
utf8, and earlier versions use
latin1\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: no-set-names option
.\" no-set-names option: mysqldump
\fB\-\-no\-set\-names\fR,
\fB\-N\fR
.sp
Turns off the
\fB\-\-set\-charset\fR
setting, the same as specifying
\fB\-\-skip\-set\-charset\fR\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: set-charset option
.\" set-charset option: mysqldump
\fB\-\-set\-charset\fR
.sp
Add
SET NAMES \fIdefault_character_set\fR
to the output\&. This option is enabled by default\&. To suppress the
SET NAMES
statement, use
\fB\-\-skip\-set\-charset\fR\&.
.RE
Replication Options
.PP
The
\fBmysqldump\fR
command is frequently used to create an empty instance, or an instance including data, on a slave server in a replication configuration\&. The following options apply to dumping and restoring data on replication master and slave servers\&.
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: apply-slave-statements option
.\" apply-slave-statements option: mysqldump
\fB\-\-apply\-slave\-statements\fR
.sp
For a slave dump produced with the
\fB\-\-dump\-slave\fR
option, add a
STOP SLAVE
statement before the
CHANGE MASTER TO
statement and a
START SLAVE
statement at the end of the output\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: delete-master-logs option
.\" delete-master-logs option: mysqldump
\fB\-\-delete\-master\-logs\fR
.sp
On a master replication server, delete the binary logs by sending a
PURGE BINARY LOGS
statement to the server after performing the dump operation\&. This option automatically enables
\fB\-\-master\-data\fR\&.
.RE
.sp
.RS 4
.ie n \{\
\h'-04'\(bu\h'+03'\c
.\}
.el \{\
.sp -1
.IP \(bu 2.3
.\}
.\" mysqldump: dump-slave option
.\" dump-slave option: mysqldump
\fB\-\-dump\-slave[=\fR\fB\fIvalue\fR\fR\fB]\fR
.sp
This option is similar to
\fB\-\-master\-data\fR
except that it is used to dump a replication slave server to produce a dump file that can be used to set up another server as a slave that has the same master as the dumped server\&. It causes the dump output to include a