Why are primary keys important?

Related questions

1. Will DBD get dedicated servers?
2. What means dedicated server?
3. What Does the Skeleton Key do?
4. What is a dark lock in dead by daylight?
5. Does dead by daylight have Crossplay?
6. How do you open the hatch dead by daylight?
7. How big are dead by daylight maps?
8. Does dead by daylight have matchmaking?
9. What does Key do in Dead by daylight?
10. What killers come with dead by daylight special edition?

Tags

1. #needs
2. #unique
3. #table
4. #ensures
5. #steps
6. #values
7. #level
8. #database
9. #choosing
10. #primary
11. #accessibility
12. #important
13. #column
14. #because
15. #special
16. #serves
17. #purpose
18. #compose
19. #design