SQL - Best practice for a Friendship table

Question

Before you show me duplicates, please note that I\'ve searched through the site an have found some examples but not quite specific to my prob

Answer 1

Table User: UserId
Table Friendship: FriendshipId
Table UserFriendships: UserId, FriendshipId, FriendshipStatus

You can add a UNIQUE constraint to prevent a User from being in a Friendship twice.

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You have Users and Friendships. Users can join Friendships (which can be 0 or more Users) by creating a record in the third table.