Final answer:
The lowest isolation level allowed by SQL is READ UNCOMMITTED. This isolation level allows a transaction to read uncommitted data that might be rolled back by another transaction. It provides the lowest level of isolation, meaning that it has the highest level of concurrency and the least protection against dirty reads, non-repeatable reads, and phantom reads.
Step-by-step explanation:
The lowest isolation level allowed by SQL is READ UNCOMMITTED. The lowest isolation level allowed by SQL is READ UNCOMMITTED. This isolation level allows a transaction to read uncommitted data that might be rolled back by another transaction.
It provides the lowest level of isolation, meaning that it has the highest level of concurrency and the least protection against dirty reads, non-repeatable reads, and phantom reads. This isolation level allows a transaction to read uncommitted data that might be rolled back by another transaction.
It provides the lowest level of isolation, meaning that it has the highest level of concurrency and the least protection against dirty reads, non-repeatable reads, and phantom reads.