mysqldump(1)
NAME
mysqldump - text-based client for dumping or backing up mysql data-
bases, tables and or data.
USAGE
mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
OPTION SYNOPSIS
mysqldump [-A|--all-databases] [-a|--all] [-#|--debug=...] [--charac-
ter-sets-dir=...] [-?|--help] [-B|--databases] [-c|--complete-insert]
[-C|--compress] [--default-character-set=...] [-e|--extended-insert]
[--add-drop-table] [--add-locks] [--allow-keywords] [--delayed-insert]
[-F|--flush-logs] [-f|--force] [-h|--host=...] [-l|--lock-tables]
[-n|--no-create-db] [-t|--no-create-info] [-d|--no-data] [-O|--set-
variablevar=option] [--opt] [-p|--password[=...]] [-P|--port=...]
[-q|--quick] [-Q|--quote-names] [-S|--socket=...] [--tables]
[-T|--tab=...] [-u|--user=#] [-v|--verbose] [-V|--version]
[-w|--where=] [--delayed] [-e|--extended-insert] [--fields-termi-
nated-by=...] [--fields-enclosed-by=...] [--fields-option-
ally-enclosed-by=...] [--fields-escaped-by=...] [--lines-termi-
nated-by=...] [-v|--verbose] [-V|--version] [-O net_buffer_length=#,
where # < 16M]
DESCRIPTION
Dumping definition and data mysql database or table mysqldump supports
by executing
-A|--all-databases
Dump all the databases. This will be same as --databases with
all databases selected.
-a|--all
Include all MySQL specific create options.
-#|--debug=...
Output debug log. Often this is 'd:t:o,filename`.
--character-sets-dir=...
Directory where character sets are
-?|--help
Display this help message and exit.
-B|--databases
To dump several databases. Note the difference in usage; In this
case no tables are given. All name arguments are regarded as
databasenames.
-c|--complete-insert
Use complete insert statements.
-C|--compress
Use compression in server/client protocol.
--default-character-set=...
Set the default character set
-e|--extended-insert
Allows utilization of the new, much faster INSERT syntax.
--add-drop-table
Add a 'drop table' before each create.
--add-locks
Add locks around insert statements.
--allow-keywords
Allow creation of column names that are keywords.
--delayed-insert
Insert rows with INSERT DELAYED.
-F|--flush-logs
Flush logs file in server before starting dump.
-f|--force
Continue even if we get an sql-error.
-h|--host=...
Connect to host.
-l|--lock-tables
Lock all tables for read.
-n|--no-create-db
'CREATE DATABASE /*!32312 IF NOT EXISTS*/ db_name;' will not be
put in the output. The above line will be added otherwise, if
--databases or --all-databases option was given.
-t|--no-create-info
Don't write table creation info.
-d|--no-data
No row information.
-O|--set-variable var=option
give a variable a value. --help lists variables
--opt Same as --add-drop-table --add-locks --all --extended-insert
--quick --lock-tables
-p|--password[=...]
Password to use when connecting to server. If password is not
given it's solicited on the tty.
-P|--port=...
Port number to use for connection.
-q|--quick
Don't buffer query, dump directly to stdout.
-Q|--quote-names
Quote table and column names with `
-S|--socket=...
Socket file to use for connection.
--tables
Overrides option --databases(-B).
-T|--tab=...
Creates tab separated textfile for each table to given path.
(creates .sql and .txt files). NOTE: This only works if mysql-
dump is run on the same machine as the mysqld daemon.
-u|--user=#
User for login if not current user.
-v|--verbose
Print info about the various stages.
-V|--version
Output version information and exit.
-w|--where=
dump only selected records; QUOTES mandatory!
--delayed
Insert rows with the INSERT DELAYED command.
-e|--extended-insert
Use the new multiline INSERT syntax. (Gives more compact and
faster inserts statements.)
--fields-terminated-by=...
--fields-enclosed-by=...
--fields-optionally-enclosed-by=...
--fields-escaped-by=...
--lines-terminated-by=...
These options are used with the -T option and have the
same meaning as the corresponding clauses for LOAD DATA
INFILE. See Mysql manual section 7.23 LOAD DATA INFILE
Syntax.
-v|--verbose
Verbose mode. Print out more information on what the pro-
gram does.
-V|--version
Print version information and exit.
-O net_buffer_length=#, where # < 16M
When creating multi-row-insert statements (as with option
--extended-insert or --opt ), mysqldump will create rows
up to net_buffer_length length. If you increase this
variable, you should also ensure that the
max_allowed_packet variable in the MySQL server is bigger
than the net_buffer_length.
EXAMPLES
The most normal use of mysqldump is probably for making a backup
of whole databases. See Mysql Manual section 21.2 Database Back-
ups.
mysqldump --opt database > backup-file.sql
You can read this back into MySQL with:
mysql database < backup-file.sql
or
mysql -e 'source /patch-to-backup/backup-file.sql' database
However, it's also very useful to populate another MySQL server
with information from a database:
mysqldump --opt database | mysql --host=remote-host -C database
It is possible to dump several databases with one command:
mysqldump --databases database1 [ database2 database3... ] >
my_databases.sql
If all the databases are wanted, one can use:
mysqldump --all-databases > all_databases.sql
SEE ALSO
isamchk(1), isamlog(1), mysql(1), mysqlaccess(1), mysqladmin(1),
mysqld(1), mysqld_multi(1), mysqld_safe(1), mysql_fix_privi-
lege_tables(1), mysqlshow(1), mysql_zap(1), perror(1),
replace(1)
For more information please refer to the MySQL reference manual,
which may already be installed locally and which is also avail-
able online at http://www.mysql.com/doc/en/
BUGS
Please refer to http://bugs.mysql.com/ to report bugs.
AUTHOR
Ver 1.0, distribution 4.1.10a Michael (Monty) Widenius
(monty@mysql.com), MySQL AB (http://www.mysql.com/). This soft-
ware comes with no warranty. Manual page by L. (Kill-9) Peder-
sen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / sys-
tem developer (http://www.mercurmedia.com)
MySQL 4.1 19 December 2000 mysqldump(1)
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