Suppose I had a table in a database. This table contains user profile information. Each profile has: Name, birthdate, username, mini-bio, gender. My question:Suppose I wanted to make the mini bio column open source but wanted to keep age closed source, could I do this? 
Can you open source part of a database and keep another part closed?
licensing
The old you're the owner comes up again... yes, you could. The only problem here is the implementation.To implement this, you simply need to make the mini-bio column publically available, perhaps through a UI on a website. You can keep the rest of the database private. You can then say at the bottom of each pagemini-bios licensed under cc-by-sa with attribution requiredand it's open-source.