Several operations inside of a single MongoDB query

Question

Is it possible to alter more than one collection in a single query with MongoDB?

A SQL example:

begin
update table_1 set some_field=1;
update table_2 set a_different_field=2;
commit

Answer 1

I think you need to use db.eval for something like that. With db.eval you can execute javascript on the server.

You can find more info about it at the mongoDB website.