Does a QueryBuilder have to have methods for executing queries?

Question

SQL

Does a QueryBuilder have to have methods for executing queries? Or can it just return the generated string?

Answer 1

Should not perform.
Only collects the request.

Answer 2

In short: no, you don't. The question, it seems to me, is what additional benefits your method of querying will provide relative to the standard ones, and whether your users need it.