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GNU/Linux |
RedHat 9.0(Shrike) |
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mysqldump(1) |
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mysqldump − text-based client for dumping or backing up mysql databases , tables and or data.
mysqldump [OPTIONS] database [tables]
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OR |
mysqldump [OPTIONS] −−databases [OPTIONS] DB1 [DB2 DB3...] | ||
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OR |
mysqldump [OPTIONS] −−all-databases [OPTIONS] |
mysqldump [−A|−−all-databases] [−a|−−all] [−#|−−debug=...] [−−character-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−terminated−by=...] [−−fields−enclosed−by=...] [−−fields-optionally−enclosed−by=...] [−−fields−escaped−by=...] [−−lines−terminated−by=...] [−v|−−verbose] [−V|−−version] [−O net_buffer_length=#, where # < 16M]
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
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
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−−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 mysqldump 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 program 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.
The most normal
use of mysqldump is probably for making a backup
of whole databases. See Mysql Manual section 21.2 Database
Backups.
mysqldump −−opt database >
backup-file.sql
You can read this back into MySQL with:
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mysql |
database < backup-file.sql | ||
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or |
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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
isamchk (1), isamlog (1), mysqlaccess (1), mysqladmin (1), mysqlbug (1), mysqld (1), mysqldump (1), mysqlshow (1), msql2mysql (1), perror (1), replace (1), safe_mysqld (1), which1 (1), zap (1),
Ver 1.0, distribution 3.23.29a Michael (Monty) Widenius (monty@tcx.se), TCX Datakonsult AB (http://www.tcx.se). This software comes with no warranty. Manual page by L. (Kill-9) Pedersen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / system developer (http://www.mercurmedia.com)
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mysqldump(1) | |