mysql restore to different database

亡梦爱人 提交于 2019-12-03 05:46:05

问题


I back up my production database with the following command:

mysqldump -u root --opt --skip-extended-insert --databases my_production_db

The resulting dump file has the following lines near the top:

CREATE DATABASE /*!32312 IF NOT EXISTS*/ `my_production_db` /*!40100 DEFAULT CHARACTER SET latin1 */;
USE `my_production_db `;

In order to restore the database to a different destination ie. my_debvelopment_db I have to open the dump file and edit the bits where the database is named.

Then I run:

mysql -u root  -p <password> < mydumpfile

I have not figured out another way to do it.

As the database gets bigger this becomes impractical.

Am I missing something? Cant I somehow specify where I want to restore the database? Would I need a different backup command?


回答1:


If you drop the option --databases but still specify the database name, you will NOT get the create database statements. ie:

mysqldump -u root --opt --skip-extended-insert  my_production_db

On your dev machine simply create any database you wish to restore to.




回答2:


@minaz answer was good, but I want to append a little bit more.

The problem was caused by --databases keyword. If you omit the keyword, it will not contain any database creation contents.

So, Dump without --databases keyword.

mysqldump -u username -p database_name > dump.sql

And restore it with the target database name.

mysql -u username -p target_database_name < dump.sql

Also, there are several ways to do this. See the similar problem on here (dba.stackexchange).




回答3:


If you already have your dump you can strip the commands for creating and using the database. Simply remove the fourth and the new fifth line.

sed '4d' dump.sql | sed '5d' > dump-striped.sql



回答4:


On windows xampp I used following commands to achieve this

Export

mysqldump -u root -p mydb > mydb.sql

Import

mysql -u root -p mynewdb < mydb.sql


来源:https://stackoverflow.com/questions/9015474/mysql-restore-to-different-database

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