Question

State true or false: All the isolation levels disallow dirty writes

(a) True

(b) False

This question was posed to me by my school teacher while I was bunking the class.

I want to ask this question from Transaction Isolation Levels in division Transactions of RDBMS

Answer 1

The correct choice is (a) True

For explanation I would say: All the isolation levels above additionally disallow dirty writes, that is, they Disallow writes to a data item that has already been written by another transaction that has not yet committed or aborted.