Most developers are coming from a background with relational database-specific experience, and then trying out some new NoSQL databases like MongoDB. Here are some “gotchas” I ran into while using MongoDB with my MySQL hat still on. Queries are case-sensitive Fields and queries in MongoDB are case-sensitive: var test1 = db.test.find({'tags': 'jquery'}).count(); var test2 = db.test.find({'tags': 'j