This will rollback both inserts due to an invalid datetime:
BEGIN TRANSACTION
BEGIN TRY
INSERT INTO dbo.Sale(Price, SaleDate, Quantity)
VALUES (5.2, GETDATE(), 1)
INSERT INTO dbo.Sale(Price, SaleDate, Quantity)
VALUES (5.2, 'not a date', 1)
COMMIT TRANSACTION
END TRY
BEGIN CATCH
THROW
ROLLBACK TRANSACTION
END CATCH
This will commit both inserts:
BEGIN TRANSACTION
BEGIN TRY
INSERT INTO dbo.Sale(Price, SaleDate, Quantity)
VALUES (5.2, GETDATE(), 1)
INSERT INTO dbo.Sale(Price, SaleDate, Quantity)
VALUES (5.2, GETDATE(), 1)
COMMIT TRANSACTION
END TRY
BEGIN CATCH
THROW
ROLLBACK TRANSACTION
END CATCH