source control and databases

How does /prog/ handle source control for database changes?  I have a DB that changes pretty frequently based on customer requests, and I'm having trouble coming up with a scheme that would handle changes to stored procedures, lookup data, table definitions, etc.  Bonus is getting it to handle both full build scripts as well as incremental patches.

inb4 lmgtfy.com, I don't know how to google.

Rite aid FTW