The tricky swamps of database versioning

If any developer have to draw a picture of most solutions, he/she usually draw the cylinder that represents the database first. Unfortunately when you start to apply version control to the solution, you start versioning the code first and more often than not completely omit the database from this process. One can ascribe this to the fact that database versioning can become relatively tricky, but also because few people understand exactly how to version a database.