6. Backup and recovery of MySQL database

Catalog

01、 Derived data ： Generate SQL Script ---> Derived data

02、 Restore data ： perform SQL Script --> Restore data

1、 Mode one ： stay DOS Under the window , Need to log in mysql

2、 Mode two ： stay DOS Under the window , You don't need to log in mysql

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01、 Derived data ： Generate SQL Script ---> Derived data

（1） Use it on the console mysqldump Command can be used to generate script text for the specified database .

（2） Be careful ： The generated script text only contains the contents of the database , There will be no statement to create a database , So when restoring data , You need to manually create a database before recovering data .

grammar ：mysqldump -u user name -p password Database name > The generated script file needs to be stored in the path

          After the above command is executed , Can be found in F I found mystudent.sql Script files

02、 Restore data ： perform SQL Script --> Restore data

1、 Mode one ： stay DOS Under the window , Need to log in mysql

grammar ：source The address where the script file is located （ for example ：source F:\mystudent.sql）

         Be careful ：

         perform SQL Script requires login mysql, Then enter the specified database , To execute SQL Script ！！！

         When executing the script, you need to check whether the tables in the current database conflict with the statements in the script file （ That is, whether the database in which the recovered data is stored duplicates the file in the recovered data ）

（1） Create a database （ For example, create a database as ：mynewstudent)）

（2） Using a database

（3） perform SQL Script , Restore data

          After the execution of the above command , The recovered data will be stored in mynewstudent In the database ：

2、 Mode two ： stay DOS Under the window , You don't need to log in mysql

grammar ：mysql -u user name -p password Database name < The address where the script file is located

         for example ：mysql -uroot -proot mynewstudent<F:\mystudent.sql

（1） Premise ： First create the database mynewstudent after , Then execute the following order

 

           After the execution of the above command , The recovered data will be stored in mynewstudent In the database ：