How to define a column that can automate capitalizing?

问题

So that when you insert 'abc',it'll be converted to 'ABC' automatically.

I'm using MySQL,is it possible?

回答1:

You could write an INSERT trigger that does this for you.

Something like:

CREATE TRIGGER Capitalize BEFORE INSERT ON MyTable
SET NEW.MyColumn = UPPER(NEW.MyColumn)

回答2:

What about using Upper function while executing query ? lets say You are using a SP to insert the values ... cast the value to upper case using UPPER function and then insert ?

回答3:

this really should be done before it is passed to the DB

来源：https://stackoverflow.com/questions/2056488/how-to-define-a-column-that-can-automate-capitalizing