If you want everyone to use your database, MIT or ZLIB are clearly superior. For you(r company) that would limit your monetization options to support and similar, which is certainly not ideal.

If you value free software (as opposed to open source), AGPL is a good option and allows you to sell more permissive licenses to everyone who needs one.

If you actually want to make money with this, it's really a question of your business model. I would use it with either license.