mysql create view only if it doesn't already exist

问题

How do I create a view only if it doesn't exist. If it does exist, I want to drop the view and redefine it. I also want no warnings or errors.

回答1:

You're going to kick yourself:

CREATE OR REPLACE VIEW ...

Details here. ;-)

回答2:

CREATE OR REPLACE VIEW <view name>
AS
<your select expression goes here>

来源：https://stackoverflow.com/questions/2245847/mysql-create-view-only-if-it-doesnt-already-exist