The mysqldump
command is used to create backups of MySQL databases. When combined with the -Y
or --all-tablespaces
option, it dumps all tablespaces associated with the MySQL instance. This option is particularly useful when you need to ensure that all data, including tables stored in different tablespaces, is backed up comprehensively.
Here are several examples of how to use mysqldump
with the -Y
option:
Example 1: Dump all tablespaces for a specific database named mydatabase
.
mysqldump -Y mydatabase > mydatabase_tablespace_backup.sql
This command dumps all tablespaces used by the mydatabase
database into the file mydatabase_tablespace_backup.sql
.
Example 2: Dump all tablespaces for all databases on the MySQL server.
mysqldump -Y --all-databases > all_databases_tablespace_backup.sql
This command backs up all tablespaces from every database on the MySQL server into the file all_databases_tablespace_backup.sql
.
Example 3: Dump all tablespaces while excluding a specific table from a database.
mysqldump -Y --ignore-table=mydatabase.excludetable mydatabase > mydatabase_tablespace_backup.sql
Here, the --ignore-table
option excludes the table excludetable
from being included in the backup, while all other tablespaces are dumped.
Example 4: Dump all tablespaces and compress the output using gzip.
mysqldump -Y --all-databases | gzip > all_databases_tablespace_backup.sql.gz
This command pipes the output of mysqldump
into gzip
to compress the backup file all_databases_tablespace_backup.sql.gz
.
Example 5: Dump all tablespaces while specifying a username and password interactively.
mysqldump -Y -u username -p mydatabase > mydatabase_tablespace_backup.sql
By omitting the password after -p
, MySQL prompts for the password interactively, enhancing security.
Example 6: Dump all tablespaces and exclude triggers from the backup.
mysqldump -Y --skip-triggers mydatabase > mydatabase_tablespace_backup.sql
The --skip-triggers
option excludes triggers from being included in the dumped tablespaces.
Example 7: Dump all tablespaces using a specific character set for data encoding.
mysqldump -Y --default-character-set=utf8 mydatabase > mydatabase_tablespace_backup.sql
This command specifies UTF-8 as the character set for encoding data in the backup file.
Example 8: Dump all tablespaces while including SQL statements to recreate the databases.
mysqldump -Y --add-drop-database mydatabase > mydatabase_tablespace_backup.sql
The --add-drop-database
option adds SQL statements to drop and recreate databases before restoring data.
Example 9: Dump all tablespaces with extended insert statements for more efficient data restoration.
mysqldump -Y --extended-insert mydatabase > mydatabase_tablespace_backup.sql
The --extended-insert
option creates fewer insert statements, speeding up data insertion during restoration.
Example 10: Dump all tablespaces while suppressing comments in the SQL output.
mysqldump -Y --skip-comments mydatabase > mydatabase_tablespace_backup.sql
The --skip-comments
option omits comments from the dumped SQL file, reducing its size.
Read Also
Dump All Databases Using mysqldump
How to Utilize Named Login Paths in mysqldump
Exclude Default Option Files in mysqldump Output
How to Print MySQL Configuration Defaults using mysqldump
Git Push: Updating Remote Repositories
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