What are different isolation levels provided in WCF?
The different isolation levels: 1. READ UNCOMMITTED: – An uncommitted transaction can be read. This transaction can be rolled back later. 2. READ COMMITTED :- Will not read data of a transaction that has not been committed yet 3. REPEATABLE READ: – Locks placed on all data and another transaction cannot read. 4. SERIALIZABLE:- Does not allow other transactions to insert or update data until the transaction is complete.