Which of the following scenarios may lead to an irrecoverable error in a database system?
A transaction writes a data item after it is read by an uncommitted transaction
Blind Write. So commit or not, does not matter.
@aiyyar.aarushi I think the reason is that since unrepeatable error is against the isolation property, database will undo the changes that was introduced , using the logs .In case of option (d) it is not that every dirty read leads to unrecoverable schedule, but it "may lead to an irrecoverable error" as the question has asked about "may lead to'' therefore option d is the right one since "if transaction reading uncommitted data commits, before the other transaction that did the write commits, then irrecoverable error occurs if uncommitted transaction fails".
Please elucidate this really important...
There is one more problem. Ppl who have...