I find myself writing new functions and updating existing ones a lot more often than having to add new columns or tables to my database schema. This is probably true for all well designed systems. If you need to change your schema every time you need to change your code, its a clear sign you are a very bad developer.

quality of code indicator = [code changes] / [database schema changes]

Related quote:

"Show me your flowcharts and conceal your tables, and I shall continue to be mystified. Show me your tables, and I won’t usually need your flowcharts; they’ll be obvious." (Fred Brooks)