Führen Sie Folgendes aus und überzeugen Sie sich selbst:
CREATE PROCEDURE dbo.KeepsIsolation
AS
BEGIN
PRINT 'Inside sproc that does not change isolation level';
DBCC USEROPTIONS;
END
GO
CREATE PROCEDURE dbo.ChangesIsolation
AS
BEGIN
PRINT 'Inside sproc that changes isolation level';
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
DBCC USEROPTIONS;
END
GO
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ;
DBCC USEROPTIONS;
EXEC dbo.KeepsIsolation;
DBCC USEROPTIONS;
EXEC dbo.ChangesIsolation;
-- demonstrates that isolation level restored to REPEATABLE READ after exiting the procedure
DBCC USEROPTIONS;
