restore mysql server question

Posted on 2014-01-16
Medium Priority
Last Modified: 2014-01-16
  I have a database already created. Now, I would like to restore a backup copy. Does the commands MySQL -<id> -p <database> < backup.sql delete the existing database and then create a new one or do I have to do the following

1: delete the existing DB
2: Create the database
2: restore the backup

Thanks for your help
Question by:SiemensSEN
LVL 61

Accepted Solution

Kevin Cross earned 800 total points
ID: 39786099
Whenever I have done this, the database (schema) remains because the first line of the backup SQL file usually is as follows.
USE `db_name`;

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If you want to create a new database, you can change the top two lines of the code.  If I remember correctly, you can remove them and in the Workbench the new schema option will work.  Otherwise, it ignores that because of the USE schema name statement.

Author Closing Comment

ID: 39786205

Expert Comment

ID: 39786693
It depends on your database dump file. E.g. using mysqldump, it is possible to request a "drop database" in the dump, using --add-drop-database
So have a look at the beginning of your backup.sql and if you can see something like "drop database ..." then you don't have to explicitly drop it.

As for creation, there's a similar option --no-create-db; unless invoked this way the "create database" will be present in the dump. Look for it.

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