Explanation
1. Logical backup in MySQL backs up the data in the database as a text file. The backed up file can be viewed and edited.
2. You can use the mysqldump tool to complete logical backup.
If no table in the database is specified, all tables in all databases will be exported by default.
Example
// 备份指定的数据库或者数据库中的某些表 shell> mysqldump [options] db_name [tables] // 备份指定的一个或多个数据库 shell> mysqldump [options] --database DB1 [DB2,DB3...] // 备份所有数据库 shell> mysqldump [options] --all-database
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