A lost update problem may occur between two transactions when these two transactions have read-write conflicts.Question 2Select one:TrueFalse

The statement is True.

In the context of database transactions, the "lost update problem" occurs when two or more transactions read the same data concurrently, and one transaction updates the data based on the value it read. Subsequently, another transaction may also read that same data, leading to a situation where the first transaction's update is effectively "lost" due to the actions of the second transaction.

For example, consider two transactions, T1 and T2, both trying to update the same bank account balance. If T1 reads the balance first, modifies it, and writes it back, and then T2 reads the original balance (not the updated one) and writes its own modified value, the update from T1 will be lost. This problem highlights the importance of transaction isolation in a database management system to maintain data integrity and ensure that transactions do not interfere with each other in such a detrimental way. Thus, ensuring proper concurrency control mechanisms (like locking or multiversion concurrency control) is essential for preventing lost updates.