From 111438f268ebc1158ef33f8b7ddf63913bc86932 Mon Sep 17 00:00:00 2001 From: Franco Colmenarez Date: Wed, 15 Sep 2021 12:23:11 -0500 Subject: [PATCH] Relationships --- README.md | 1 + 1 file changed, 1 insertion(+) diff --git a/README.md b/README.md index c9bee53..7640d1c 100644 --- a/README.md +++ b/README.md @@ -41,6 +41,7 @@ Mongo doesn't require schema or relations but if you need to, you can have them. `One-to-many` could be an ID that points to another ID but this is way too "SQL" style. The other approach is to have an embeded document. `Many-to-many` is also the same concept but with arrays. The issue is that we might have to update each embedded document in case some information changes. It is better to use references in this case. +[More about relationships here](https://docs.mongodb.com/manual/applications/data-models-relationships/) # Projections Sometimes we don't need the whole document, just a few data, so we can select just the data we need in the second parameter like so: