> db.users.find({ foo: "bar" })

I don't know MongoDB query language, but gah! that looks horrible. It uses three different syntaxes; dot notation, curlies/brackets and colon key value. Full of punctuation and doesn't read like english.

There is no distinction between noun "users" and verb "find". There's extraneous "db". does foo: "bar" mean equal or is it find() that determines the operator, maybe combo of both? how do I do other operations.

.Only if you are familiar with programing language that has that same syntax does any of it make sense. Otoh even educated non-programmers are gonna be able to read the SQL as SELECT "these things" FROM "this table" WHERE "these conditions are true".