Q. 34 Which of the following scenarios may lead to an irrecoverable error in a database
system?
(A) A transaction writes a data item after it is read by an uncommitted transaction
(B) A transaction read a data item after it is read by an uncommitted transaction
(C) A transaction read a data item after it is written by an committed transaction
(D) A transaction read a data item after it is written by an uncommitted transaction
Answer: (D)
Explanation:
