Snapey6 years ago Best Answer Level 122ReplyReport SpamYou should enable them incase you want to use them. FK Constraints enforce relationships. For instance, if you delete a user, then you could automatically have the database delete their associated posts and comments This creates referential integrity https://database.guide/what-is-referential-integrity/ Like Reply
sevenTopo OP 6 years agoLevel 1ReplyReport SpamThank you so much .now i can see the difference . Like Reply