Exactly. And even then, database choice faces some of the same selection criteria. What's better supported, does it have well tested and documented client imple

Exactly. And even then, database choice faces some of the same selection criteria. What's better supported, does it have well tested and documented client implementations (or do I have the time to write it myself), what features do I need, what features should I anticipate needing, is the performance good enough for what I plan on doing.