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I received a bunch of questions about using Map Reduce in MongoDB, so here I provide a bunch of examples. First I'll cover Map Reduce using straight JavaScript. Then we'll cover increasingly complex MongoDB Map Reduce queries. Then finally I'll cover using Group and Distinct.
On this page of the site you can watch the video online MongoDB Tutorial 4 Map Reduce Finalize Group with a duration of hours minute second in good quality, which was uploaded by the user Derek Banas 24 December 2015, share the link with friends and acquaintances, this video has already been watched 49,177 times on youtube and it was liked by 507 viewers. Enjoy your viewing!