914 lines
20 KiB
Groff
914 lines
20 KiB
Groff
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'\" t
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.\" Title: \fBmysqlcheck\fR
|
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.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
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.\" Generator: DocBook XSL Stylesheets v1.77.1 <http://docbook.sf.net/>
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.\" Date: 11/04/2013
|
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.\" Manual: MySQL Database System
|
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.\" Source: MySQL 5.1
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.\" Language: English
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.\"
|
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.TH "\FBMYSQLCHECK\FR" "1" "11/04/2013" "MySQL 5\&.1" "MySQL Database System"
|
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.\" -----------------------------------------------------------------
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.\" * Define some portability stuff
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" http://bugs.debian.org/507673
|
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.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
|
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.ie \n(.g .ds Aq \(aq
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.el .ds Aq '
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.\" -----------------------------------------------------------------
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.\" * set default formatting
|
||
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.\" -----------------------------------------------------------------
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||
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.\" disable hyphenation
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||
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.nh
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||
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.\" disable justification (adjust text to left margin only)
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||
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.\" mysqlcheck
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.\" maintenance: tables
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||
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.\" repair: tables
|
||
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.\" tables: maintenance
|
||
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|
.\" tables: repair
|
||
|
|
.SH "NAME"
|
||
|
|
mysqlcheck \- a table maintenance program
|
||
|
|
.SH "SYNOPSIS"
|
||
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|
.HP \w'\fBmysqlcheck\ [\fR\fB\fIoptions\fR\fR\fB]\ [\fR\fB\fIdb_name\fR\fR\fB\ [\fR\fB\fItbl_name\fR\fR\fB\ \&.\&.\&.]]\fR\ 'u
|
||
|
|
\fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] [\fR\fB\fIdb_name\fR\fR\fB [\fR\fB\fItbl_name\fR\fR\fB \&.\&.\&.]]\fR
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||
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|
.SH "DESCRIPTION"
|
||
|
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.PP
|
||
|
|
The
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
client performs table maintenance: It checks, repairs, optimizes, or analyzes tables\&.
|
||
|
|
.PP
|
||
|
|
Each table is locked and therefore unavailable to other sessions while it is being processed, although for check operations, the table is locked with a
|
||
|
|
READ
|
||
|
|
lock only (see
|
||
|
|
Section\ \&13.3.5, \(lqLOCK TABLES and UNLOCK TABLES Syntax\(rq, for more information about
|
||
|
|
READ
|
||
|
|
and
|
||
|
|
WRITE
|
||
|
|
locks)\&. Table maintenance operations can be time\-consuming, particularly for large tables\&. If you use the
|
||
|
|
\fB\-\-databases\fR
|
||
|
|
or
|
||
|
|
\fB\-\-all\-databases\fR
|
||
|
|
option to process all tables in one or more databases, an invocation of
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
might take a long time\&. (This is also true for
|
||
|
|
\fBmysql_upgrade\fR
|
||
|
|
because that program invokes
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
to check all tables and repair them if necessary\&.)
|
||
|
|
.PP
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
is similar in function to
|
||
|
|
\fBmyisamchk\fR, but works differently\&. The main operational difference is that
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
must be used when the
|
||
|
|
\fBmysqld\fR
|
||
|
|
server is running, whereas
|
||
|
|
\fBmyisamchk\fR
|
||
|
|
should be used when it is not\&. The benefit of using
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
is that you do not have to stop the server to perform table maintenance\&.
|
||
|
|
.PP
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
uses the SQL statements
|
||
|
|
CHECK TABLE,
|
||
|
|
REPAIR TABLE,
|
||
|
|
ANALYZE TABLE, and
|
||
|
|
OPTIMIZE TABLE
|
||
|
|
in a convenient way for the user\&. It determines which statements to use for the operation you want to perform, and then sends the statements to the server to be executed\&. For details about which storage engines each statement works with, see the descriptions for those statements in
|
||
|
|
Section\ \&13.7.2, \(lqTable Maintenance Statements\(rq\&.
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
MyISAM
|
||
|
|
storage engine supports all four maintenance operations, so
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
can be used to perform any of them on
|
||
|
|
MyISAM
|
||
|
|
tables\&. Other storage engines do not necessarily support all operations\&. In such cases, an error message is displayed\&. For example, if
|
||
|
|
test\&.t
|
||
|
|
is a
|
||
|
|
MEMORY
|
||
|
|
table, an attempt to check it produces this result:
|
||
|
|
.sp
|
||
|
|
.if n \{\
|
||
|
|
.RS 4
|
||
|
|
.\}
|
||
|
|
.nf
|
||
|
|
shell> \fBmysqlcheck test t\fR
|
||
|
|
test\&.t
|
||
|
|
note : The storage engine for the table doesn\*(Aqt support check
|
||
|
|
.fi
|
||
|
|
.if n \{\
|
||
|
|
.RE
|
||
|
|
.\}
|
||
|
|
.PP
|
||
|
|
If
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
is unable to repair a table, see
|
||
|
|
Section\ \&2.13.4, \(lqRebuilding or Repairing Tables or Indexes\(rq
|
||
|
|
for manual table repair strategies\&. This will be the case, for example, for
|
||
|
|
InnoDB
|
||
|
|
tables, which can be checked with
|
||
|
|
CHECK TABLE, but not repaired with
|
||
|
|
REPAIR TABLE\&.
|
||
|
|
.PP
|
||
|
|
The use of
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
with partitioned tables is not supported before MySQL 5\&.1\&.27\&.
|
||
|
|
.if n \{\
|
||
|
|
.sp
|
||
|
|
.\}
|
||
|
|
.RS 4
|
||
|
|
.it 1 an-trap
|
||
|
|
.nr an-no-space-flag 1
|
||
|
|
.nr an-break-flag 1
|
||
|
|
.br
|
||
|
|
.ps +1
|
||
|
|
\fBCaution\fR
|
||
|
|
.ps -1
|
||
|
|
.br
|
||
|
|
.PP
|
||
|
|
It is best to make a backup of a table before performing a table repair operation; under some circumstances the operation might cause data loss\&. Possible causes include but are not limited to file system errors\&.
|
||
|
|
.sp .5v
|
||
|
|
.RE
|
||
|
|
.PP
|
||
|
|
There are three general ways to invoke
|
||
|
|
\fBmysqlcheck\fR:
|
||
|
|
.sp
|
||
|
|
.if n \{\
|
||
|
|
.RS 4
|
||
|
|
.\}
|
||
|
|
.nf
|
||
|
|
shell> \fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] \fR\fB\fIdb_name\fR\fR\fB [\fR\fB\fItbl_name\fR\fR\fB \&.\&.\&.]\fR
|
||
|
|
shell> \fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] \-\-databases \fR\fB\fIdb_name\fR\fR\fB \&.\&.\&.\fR
|
||
|
|
shell> \fBmysqlcheck [\fR\fB\fIoptions\fR\fR\fB] \-\-all\-databases\fR
|
||
|
|
.fi
|
||
|
|
.if n \{\
|
||
|
|
.RE
|
||
|
|
.\}
|
||
|
|
.PP
|
||
|
|
If you do not name any tables following
|
||
|
|
\fIdb_name\fR
|
||
|
|
or if you use the
|
||
|
|
\fB\-\-databases\fR
|
||
|
|
or
|
||
|
|
\fB\-\-all\-databases\fR
|
||
|
|
option, entire databases are checked\&.
|
||
|
|
.PP
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
has a special feature compared to other client programs\&. The default behavior of checking tables (\fB\-\-check\fR) can be changed by renaming the binary\&. If you want to have a tool that repairs tables by default, you should just make a copy of
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
named
|
||
|
|
\fBmysqlrepair\fR, or make a symbolic link to
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
named
|
||
|
|
\fBmysqlrepair\fR\&. If you invoke
|
||
|
|
\fBmysqlrepair\fR, it repairs tables\&.
|
||
|
|
.PP
|
||
|
|
The names shown in the following table can be used to change
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
default behavior\&.
|
||
|
|
.TS
|
||
|
|
allbox tab(:);
|
||
|
|
lB lB.
|
||
|
|
T{
|
||
|
|
Command
|
||
|
|
T}:T{
|
||
|
|
Meaning
|
||
|
|
T}
|
||
|
|
.T&
|
||
|
|
l l
|
||
|
|
l l
|
||
|
|
l l.
|
||
|
|
T{
|
||
|
|
\fBmysqlrepair\fR
|
||
|
|
T}:T{
|
||
|
|
The default option is \fB\-\-repair\fR
|
||
|
|
T}
|
||
|
|
T{
|
||
|
|
\fBmysqlanalyze\fR
|
||
|
|
T}:T{
|
||
|
|
The default option is \fB\-\-analyze\fR
|
||
|
|
T}
|
||
|
|
T{
|
||
|
|
\fBmysqloptimize\fR
|
||
|
|
T}:T{
|
||
|
|
The default option is \fB\-\-optimize\fR
|
||
|
|
T}
|
||
|
|
.TE
|
||
|
|
.sp 1
|
||
|
|
.PP
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
supports the following options, which can be specified on the command line or in the
|
||
|
|
[mysqlcheck]
|
||
|
|
and
|
||
|
|
[client]
|
||
|
|
groups of an option file\&.
|
||
|
|
\fBmysqlcheck\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\&.
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: help option
|
||
|
|
.\" help option: mysqlcheck
|
||
|
|
\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: all-databases option
|
||
|
|
.\" all-databases option: mysqlcheck
|
||
|
|
\fB\-\-all\-databases\fR,
|
||
|
|
\fB\-A\fR
|
||
|
|
.sp
|
||
|
|
Check all tables in all databases\&. This is the same as using the
|
||
|
|
\fB\-\-databases\fR
|
||
|
|
option and naming all the databases on the command line\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: all-in-1 option
|
||
|
|
.\" all-in-1 option: mysqlcheck
|
||
|
|
\fB\-\-all\-in\-1\fR,
|
||
|
|
\fB\-1\fR
|
||
|
|
.sp
|
||
|
|
Instead of issuing a statement for each table, execute a single statement for each database that names all the tables from that database to be processed\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: analyze option
|
||
|
|
.\" analyze option: mysqlcheck
|
||
|
|
\fB\-\-analyze\fR,
|
||
|
|
\fB\-a\fR
|
||
|
|
.sp
|
||
|
|
Analyze the tables\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: auto-repair option
|
||
|
|
.\" auto-repair option: mysqlcheck
|
||
|
|
\fB\-\-auto\-repair\fR
|
||
|
|
.sp
|
||
|
|
If a checked table is corrupted, automatically fix it\&. Any necessary repairs are done after all tables have been checked\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: bind-address option
|
||
|
|
.\" bind-address option: mysqlcheck
|
||
|
|
\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 only in the version of
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
that is supplied with MySQL Cluster, beginning with MySQL Cluster NDB 6\&.3\&.4\&. It is not available in standard MySQL 5\&.1 releases\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: character-sets-dir option
|
||
|
|
.\" character-sets-dir option: mysqlcheck
|
||
|
|
\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: check option
|
||
|
|
.\" check option: mysqlcheck
|
||
|
|
\fB\-\-check\fR,
|
||
|
|
\fB\-c\fR
|
||
|
|
.sp
|
||
|
|
Check the tables for errors\&. This is the default operation\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: check-only-changed option
|
||
|
|
.\" check-only-changed option: mysqlcheck
|
||
|
|
\fB\-\-check\-only\-changed\fR,
|
||
|
|
\fB\-C\fR
|
||
|
|
.sp
|
||
|
|
Check only tables that have changed since the last check or that have not been closed properly\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: check-upgrade option
|
||
|
|
.\" check-upgrade option: mysqlcheck
|
||
|
|
\fB\-\-check\-upgrade\fR,
|
||
|
|
\fB\-g\fR
|
||
|
|
.sp
|
||
|
|
Invoke
|
||
|
|
CHECK TABLE
|
||
|
|
with the
|
||
|
|
FOR UPGRADE
|
||
|
|
option to check tables for incompatibilities with the current version of the server\&. This option automatically enables the
|
||
|
|
\fB\-\-fix\-db\-names\fR
|
||
|
|
and
|
||
|
|
\fB\-\-fix\-table\-names\fR
|
||
|
|
options\&.
|
||
|
|
\fB\-\-check\-upgrade\fR
|
||
|
|
was added in MySQL 5\&.1\&.7\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: compress option
|
||
|
|
.\" compress option: mysqlcheck
|
||
|
|
\fB\-\-compress\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: databases option
|
||
|
|
.\" databases option: mysqlcheck
|
||
|
|
\fB\-\-databases\fR,
|
||
|
|
\fB\-B\fR
|
||
|
|
.sp
|
||
|
|
Process all tables in the named databases\&. Normally,
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
treats the first name argument on the command line as a database name and following names as table names\&. With this option, it treats all name arguments as database names\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: debug option
|
||
|
|
.\" debug option: mysqlcheck
|
||
|
|
\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 is
|
||
|
|
\*(Aqd:t:o\*(Aq\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: debug-check option
|
||
|
|
.\" debug-check option: mysqlcheck
|
||
|
|
\fB\-\-debug\-check\fR
|
||
|
|
.sp
|
||
|
|
Print some debugging information when the program exits\&. This option was added in MySQL 5\&.1\&.21\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: debug-info option
|
||
|
|
.\" debug-info option: mysqlcheck
|
||
|
|
\fB\-\-debug\-info\fR
|
||
|
|
.sp
|
||
|
|
Print debugging information and memory and CPU usage statistics when the program exits\&. This option was added in MySQL 5\&.1\&.14\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: default-character-set option
|
||
|
|
.\" default-character-set option: mysqlcheck
|
||
|
|
\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\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: extended option
|
||
|
|
.\" extended option: mysqlcheck
|
||
|
|
\fB\-\-extended\fR,
|
||
|
|
\fB\-e\fR
|
||
|
|
.sp
|
||
|
|
If you are using this option to check tables, it ensures that they are 100% consistent but takes a long time\&.
|
||
|
|
.sp
|
||
|
|
If you are using this option to repair tables, it runs an extended repair that may not only take a long time to execute, but may produce a lot of garbage rows also!
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: fast option
|
||
|
|
.\" fast option: mysqlcheck
|
||
|
|
\fB\-\-fast\fR,
|
||
|
|
\fB\-F\fR
|
||
|
|
.sp
|
||
|
|
Check only tables that have not been closed properly\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: fix-db-names option
|
||
|
|
.\" fix-db-names option: mysqlcheck
|
||
|
|
\fB\-\-fix\-db\-names\fR
|
||
|
|
.sp
|
||
|
|
Convert database names to 5\&.1 format\&. Only database names that contain special characters are affected\&. This option was added in MySQL 5\&.1\&.7\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: fix-table-names option
|
||
|
|
.\" fix-table-names option: mysqlcheck
|
||
|
|
\fB\-\-fix\-table\-names\fR
|
||
|
|
.sp
|
||
|
|
Convert table names to 5\&.1 format\&. Only table names that contain special characters are affected\&. This option was added in MySQL 5\&.1\&.7\&. As of MySQL 5\&.1\&.23, this option also applies to views\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: force option
|
||
|
|
.\" force option: mysqlcheck
|
||
|
|
\fB\-\-force\fR,
|
||
|
|
\fB\-f\fR
|
||
|
|
.sp
|
||
|
|
Continue even if an SQL error occurs\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: host option
|
||
|
|
.\" host option: mysqlcheck
|
||
|
|
\fB\-\-host=\fR\fB\fIhost_name\fR\fR,
|
||
|
|
\fB\-h \fR\fB\fIhost_name\fR\fR
|
||
|
|
.sp
|
||
|
|
Connect to the MySQL server on the given host\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: medium-check option
|
||
|
|
.\" medium-check option: mysqlcheck
|
||
|
|
\fB\-\-medium\-check\fR,
|
||
|
|
\fB\-m\fR
|
||
|
|
.sp
|
||
|
|
Do a check that is faster than an
|
||
|
|
\fB\-\-extended\fR
|
||
|
|
operation\&. This finds only 99\&.99% of all errors, which should be good enough in most cases\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: optimize option
|
||
|
|
.\" optimize option: mysqlcheck
|
||
|
|
\fB\-\-optimize\fR,
|
||
|
|
\fB\-o\fR
|
||
|
|
.sp
|
||
|
|
Optimize the tables\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: password option
|
||
|
|
.\" password option: mysqlcheck
|
||
|
|
\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,
|
||
|
|
\fBmysqlcheck\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: pipe option
|
||
|
|
.\" pipe option: mysql
|
||
|
|
\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: port option
|
||
|
|
.\" port option: mysqlcheck
|
||
|
|
\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: protocol option
|
||
|
|
.\" protocol option: mysqlcheck
|
||
|
|
\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: quick option
|
||
|
|
.\" quick option: mysqlcheck
|
||
|
|
\fB\-\-quick\fR,
|
||
|
|
\fB\-q\fR
|
||
|
|
.sp
|
||
|
|
If you are using this option to check tables, it prevents the check from scanning the rows to check for incorrect links\&. This is the fastest check method\&.
|
||
|
|
.sp
|
||
|
|
If you are using this option to repair tables, it tries to repair only the index tree\&. This is the fastest repair method\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: repair option
|
||
|
|
.\" repair option: mysqlcheck
|
||
|
|
\fB\-\-repair\fR,
|
||
|
|
\fB\-r\fR
|
||
|
|
.sp
|
||
|
|
Perform a repair that can fix almost anything except unique keys that are not unique\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: silent option
|
||
|
|
.\" silent option: mysqlcheck
|
||
|
|
\fB\-\-silent\fR,
|
||
|
|
\fB\-s\fR
|
||
|
|
.sp
|
||
|
|
Silent mode\&. Print only error messages\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: socket option
|
||
|
|
.\" socket option: mysqlcheck
|
||
|
|
\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
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: SSL options
|
||
|
|
.\" SSL options: mysqlcheck
|
||
|
|
\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\ \&6.3.6.4, \(lqSSL Command Options\(rq\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: tables option
|
||
|
|
.\" tables option: mysqlcheck
|
||
|
|
\fB\-\-tables\fR
|
||
|
|
.sp
|
||
|
|
Override the
|
||
|
|
\fB\-\-databases\fR
|
||
|
|
or
|
||
|
|
\fB\-B\fR
|
||
|
|
option\&. All name arguments following the option are regarded as table names\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: use-frm option
|
||
|
|
.\" use-frm option: mysqlcheck
|
||
|
|
\fB\-\-use\-frm\fR
|
||
|
|
.sp
|
||
|
|
For repair operations on
|
||
|
|
MyISAM
|
||
|
|
tables, get the table structure from the
|
||
|
|
\&.frm
|
||
|
|
file so that the table can be repaired even if the
|
||
|
|
\&.MYI
|
||
|
|
header is corrupted\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: user option
|
||
|
|
.\" user option: mysqlcheck
|
||
|
|
\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
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: verbose option
|
||
|
|
.\" verbose option: mysqlcheck
|
||
|
|
\fB\-\-verbose\fR,
|
||
|
|
\fB\-v\fR
|
||
|
|
.sp
|
||
|
|
Verbose mode\&. Print information about the various stages of program operation\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: version option
|
||
|
|
.\" version option: mysqlcheck
|
||
|
|
\fB\-\-version\fR,
|
||
|
|
\fB\-V\fR
|
||
|
|
.sp
|
||
|
|
Display version information and exit\&.
|
||
|
|
.RE
|
||
|
|
.sp
|
||
|
|
.RS 4
|
||
|
|
.ie n \{\
|
||
|
|
\h'-04'\(bu\h'+03'\c
|
||
|
|
.\}
|
||
|
|
.el \{\
|
||
|
|
.sp -1
|
||
|
|
.IP \(bu 2.3
|
||
|
|
.\}
|
||
|
|
.\" mysqlcheck: write-binlog option
|
||
|
|
.\" write-binlog option: mysqlcheck
|
||
|
|
\fB\-\-write\-binlog\fR
|
||
|
|
.sp
|
||
|
|
This option is enabled by default, so that
|
||
|
|
ANALYZE TABLE,
|
||
|
|
OPTIMIZE TABLE, and
|
||
|
|
REPAIR TABLE
|
||
|
|
statements generated by
|
||
|
|
\fBmysqlcheck\fR
|
||
|
|
are written to the binary log\&. Use
|
||
|
|
\fB\-\-skip\-write\-binlog\fR
|
||
|
|
to cause
|
||
|
|
NO_WRITE_TO_BINLOG
|
||
|
|
to be added to the statements so that they are not logged\&. Use the
|
||
|
|
\fB\-\-skip\-write\-binlog\fR
|
||
|
|
when these statements should not be sent to replication slaves or run when using the binary logs for recovery from backup\&. This option was added in MySQL 5\&.1\&.18\&.
|
||
|
|
.RE
|
||
|
|
.SH "COPYRIGHT"
|
||
|
|
.br
|
||
|
|
.PP
|
||
|
|
Copyright \(co 1997, 2013, Oracle and/or its affiliates. All rights reserved.
|
||
|
|
.PP
|
||
|
|
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 of the License.
|
||
|
|
.PP
|
||
|
|
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
||
|
|
.PP
|
||
|
|
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
|
||
|
|
.sp
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
For more information, please refer to the MySQL Reference Manual,
|
||
|
|
which may already be installed locally and which is also available
|
||
|
|
online at http://dev.mysql.com/doc/.
|
||
|
|
.SH AUTHOR
|
||
|
|
Oracle Corporation (http://dev.mysql.com/).
|