What are views good for?

Question

I\'m just trying to get a general idea of what views are used for in RDBMSes. That is to say, I know what a view is and how to make one. I also know what I\'ve used them f

Answer 1

Anytime you need [my_interface] != [user_interface].

Example:

TABLE A:

• id
• info

VIEW for TABLE A:

• Customer Information

this is a way you might hide the id from the customer and rename the info to a more verbose name both at once.

The view will use underlying index for primary key id, so you won't see a performance loss, just better abstraction of the select query.