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Transactions
Database Administrator
Transactions questions
8 questions on Transactions for database administrators, easiest first.
Easy
3
Durability in ACID
easy
Why a write-ahead log exists
easy
What ROLLBACK undoes
easy
Medium
1
Non-repeatable read
medium
Hard
4
Fixing a recurring deadlock
hard
Two doctors go off call
hard
Locks held by nobody
hard
Faster commits with a durability cost
hard
