What is lock in transaction?

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Tags

1. #locks
2. #shared
3. #protocols
4. #perform
5. #value
6. #write
7. #allowing
8. #based
9. #database
10. #would
11. #being
12. #operation
13. #because
14. #changed
15. #exclusive
16. #state
17. #transaction
18. #inconsistent
19. #acquired