What happens when you drop database?

Question

First, the DROP DATABASE statement deletes the database and also the physical disk files used by the database. Therefore, you should have a backup of the database in case you want to restore it in the future. Second, you cannot drop the database that is currently being used.

Is dropping a database the same as deleting?

Simply: a DELETE command removes matching rows, a DROP command removes the entire table. Better yet, all matching rows.

Why drop database if exists?

IF EXISTS is used to prevent an error from occurring if the database does not exist. If the default database is dropped, the default database is unset (the DATABASE() function returns NULL ). If you use DROP DATABASE on a symbolically linked database, both the link and the original database are deleted.

What happens when you take database offline?

Taking the database offline is a quick way to stop the bleeding until you get the bug identified. You can then bring it back online to assess the damage within the database.

Can databases be deleted?

System databases cannot be deleted.

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