7 The Oracle Data Provider : Isolation Levels

Isolation Levels
Oracle supports isolation levels ReadCommitted and Serializable. The Oracle data provider defines the isolation level through the BeginTransaction(IsolationLevel) method of the OracleConnection class (see “OracleConnection Class”). The initial default is ReadCommitted.
For more information, refer to Chapter 2 “Locking and Isolation Levels” in the DataDirect Connect Series for ADO.NET Reference.