MySQL – 数据的导出和导入



下面是“mysqldump –help”得到的:

mysql  Ver 14.12 Distrib 5.0.27, for unknown-freebsd6.2 (i386) using  EditLine wrapper

Copyright (C) 2002 MySQL AB

This software comes with ABSOLUTELY NO WARRANTY. This is free software,

and you are welcome to modify and redistribute it under the GPL license

Usage: mysql [OPTIONS] [database]

-?, –help          Display this help and exit.

-I, –help          Synonym for -?

–auto-rehash       Enable automatic rehashing. One doesn’t need to use

‘rehash’ to get table and field completion, but startup

and reconnecting may take a longer time. Disable with


-A, –no-auto-rehash

No automatic rehashing. One has to use ‘rehash’ to get

table and field completion. This gives a quicker start of

mysql and disables rehashing on reconnect. WARNING:

options deprecated; use –disable-auto-rehash instead.

-B, –batch         Don’t use history file. Disable interactive behavior.

(Enables –silent)


Directory where character sets are.


Set the default character set.

-C, –compress      Use compression in server/client protocol.

-#, –debug[=#]     This is a non-debug version. Catch this and exit

-D, –database=name Database to use.

–delimiter=name    Delimiter to be used.

-e, –execute=name  Execute command and quit. (Disables –force and history


-E, –vertical      Print the output of a query (rows) vertically.

-f, –force         Continue even if we get an sql error.

-G, –named-commands

Enable named commands. Named commands mean this program’s

internal commands; see mysql> help . When enabled, the

named commands can be used from any line of the query,

otherwise only from the first line, before an enter.

Disable with –disable-named-commands. This option is

disabled by default.

-g, –no-named-commands

Named commands are disabled. Use \* form only, or use

named commands only in the beginning of a line ending

with a semicolon (;) Since version 10.9 the client now

starts with this option ENABLED by default! Disable with

‘-G’. Long format commands still work from the first

line. WARNING: option deprecated; use

–disable-named-commands instead.

-i, –ignore-spaces Ignore space after function names.

–local-infile      Enable/disable LOAD DATA LOCAL INFILE.

-b, –no-beep       Turn off beep on error.

-h, –host=name     Connect to host.

-H, –html          Produce HTML output.

-X, –xml           Produce XML output

–line-numbers      Write line numbers for errors.

-L, –skip-line-numbers

Don’t write line number for errors. WARNING: -L is

deprecated, use long version of this option instead.

-n, –unbuffered    Flush buffer after each query.

–column-names      Write column names in results.

-N, –skip-column-names

Don’t write column names in results. WARNING: -N is

deprecated, use long version of this options instead.

-O, –set-variable=name

Change the value of a variable. Please note that this

option is deprecated; you can set variables directly with


–sigint-ignore     Ignore SIGINT (CTRL-C)

-o, –one-database  Only update the default database. This is useful for

skipping updates to other database in the update log.

–pager[=name]      Pager to use to display results. If you don’t supply an

option the default pager is taken from your ENV variable

PAGER. Valid pagers are less, more, cat [> filename],

etc. See interactive help (\h) also. This option does not

work in batch mode. Disable with –disable-pager. This

option is disabled by default.

–no-pager          Disable pager and print to stdout. See interactive help

(\h) also. WARNING: option deprecated; use

–disable-pager instead.

-p, –password[=name]

Password to use when connecting to server. If password is

not given it’s asked from the tty.

-P, –port=#        Port number to use for connection.

–prompt=name       Set the mysql prompt to this value.

–protocol=name     The protocol of connection (tcp,socket,pipe,memory).

-q, –quick         Don’t cache result, print it row by row. This may slow

down the server if the output is suspended. Doesn’t use

history file.

-r, –raw           Write fields without conversion. Used with –batch.

–reconnect         Reconnect if the connection is lost. Disable with

–disable-reconnect. This option is enabled by default.

-s, –silent        Be more silent. Print results with a tab as separator,

each row on new line.

-S, –socket=name   Socket file to use for connection.

-t, –table         Output in table format.

-T, –debug-info    Print some debug info at exit.

–tee=name          Append everything into outfile. See interactive help (\h)

also. Does not work in batch mode. Disable with

–disable-tee. This option is disabled by default.

–no-tee            Disable outfile. See interactive help (\h) also. WARNING:

option deprecated; use –disable-tee instead

-u, –user=name     User for login if not current user.

-U, –safe-updates  Only allow UPDATE and DELETE that uses keys.

-U, –i-am-a-dummy  Synonym for option –safe-updates, -U.

-v, –verbose       Write more. (-v -v -v gives the table output format).

-V, –version       Output version information and exit.

-w, –wait          Wait and retry if connection is down.

–connect_timeout=# Number of seconds before connection timeout.


Max packet length to send to, or receive from server


Buffer for TCP/IP and socket communication

–select_limit=#    Automatic limit for SELECT when using –safe-updates

–max_join_size=#   Automatic limit for rows in a join when using


–secure-auth       Refuse client connecting to server if it uses old

(pre-4.1.1) protocol

–show-warnings     Show warnings after every statement.


Default options are read from the following files in the given order:

/etc/my.cnf ~/.my.cnf /usr/data1/mysql//etc/my.cnf

The following groups are read: mysql client

The following options may be given as the first argument:

–print-defaults        Print the program argument list and exit

–no-defaults           Don’t read default options from any options file

–defaults-file=#       Only read default options from the given file #

–defaults-extra-file=# Read this file after the global files are read


Variables (–variable-name=value)

and boolean options {FALSE|TRUE}  Value (after reading options)

——————————— —————————–

auto-rehash                       FALSE

character-sets-dir                (No default value)

default-character-set             gb2312

compress                          FALSE

database                          (No default value)

delimiter                         ;

vertical                          FALSE

force                             FALSE

named-commands                    FALSE

local-infile                      FALSE

no-beep                           FALSE

host                              (No default value)

html                              FALSE

xml                               FALSE

line-numbers                      TRUE

unbuffered                        FALSE

column-names                      TRUE

sigint-ignore                     FALSE

port                              3306

prompt                            mysql>

quick                             FALSE

raw                               FALSE

reconnect                         TRUE

socket                            /tmp/mysql.sock

table                             FALSE

debug-info                        FALSE

user                              (No default value)

safe-updates                      FALSE

i-am-a-dummy                      FALSE

connect_timeout                   0

max_allowed_packet                16777216

net_buffer_length                 16384

select_limit                      1000

max_join_size                     1000000

secure-auth                       FALSE

show-warnings                     FALSE


首先进入到mysql中:mysql -u root -p


mysql > source /usr/data1/user/bak.sql




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