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HomeDatabaseMysql Tutorial使用mysqldump命令行工具创建逻辑备份

mysqldump命令创建的是逻辑备份,结果集有两种格式:一种是将数据转换成标准的SQL语句(一堆CREATE,DROP,INSERT等语句),另一种是

mysqldump命令创建的是逻辑备份,结果集有两种格式:一种是将数据转换成标准的SQL语句(一堆CREATE,DROP,INSERT等语句),另一种是将数据按照指定分隔符,输出成定界格式的平面文件。

[mysql@mysql1 ~]$ mysqldump

usage: mysqldump [OPTIONS] database [tables]

OR    mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]

OR    mysqldump [OPTIONS] --all-databases [OPTIONS]

For more options, use mysqldump –help

[mysql@mysql1 ~]$ mysqldump -usystem -p123456 -S /data/mysqldata/3306/mysql.sock mysql > /data/mysqldata/backup/mysql_fullbak.sql

[mysql@mysql1 ~]$ mysqldump -usystem -p123456 -S /data/mysqldata/3306/mysql.sock --databases mysql test > /data/mysqldata/backup/mysql_test_fullbak.sql

[mysql@mysql1 ~]$ mysqldump -usystem -p123456 -S /data/mysqldata/3306/mysql.sock --all-databases > /data/mysqldata/backup/all_fullbak.sql

输出定界格式文件:当以定界格式进行输出时,mysqldump输出信息默认就不再是标准输出,而是根据对象,每个对象生成对应的两个同名文件,其中一个用于存储对象中的实际数据,文件扩展名为.txt,另一个存储对象的机构(即create table语句),文件扩展名为.sql,这类文件均保存在--tab参数指定的路径下,,默认输出的.txt每条记录输出到一行,行与行之间使用默认的换行符

[mysql@mysql1 ~]$ mysqldump -usystem -p123456 -S /data/mysqldata/3306/mysql.sock --tab=/data/mysqldata/backup mysql

在5.6中执行如下操作

在my.cnf文件中添加

[mysqldump]

user=system

password=123456

[mysql@mysql1 ~]$ mysqldump -S /data/mysqldata/3306/mysql.sock mysql > /data/mysqldata/backup/mysql_fullbak.sql

[mysql@mysql1 ~]$ mysqldump -S /data/mysqldata/3306/mysql.sock --tab=/data/mysqldata/backup mysql

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