Should data validation be done at the database level?

Question

I am writing some stored procedures to create tables and add data. One of the fields is a column that indicates percentage. The value there should be 0-100. I started thinkin

Answer 1

I think basic data validation like you described makes sure that the data entered is correct. The applications should be validating data, but it doesn't hurt to have the data validated again on the database. Especially if there is more than one way to access the database.