back to course
Lesson 62 / 29821%
SQL Constraints2/10
Primary Key vs Foreign Key
Identity vs reference — knowing both is table-stakes.
This lesson is Pro only.
Unlock every premium lesson and module — Pro from ₹299 / month (or ₹999 / year, saves ~₹2,589).
Sign in to unlock// feedback.matters()
Did this lesson help you?