SQLServer事务回滚添加

DECLARE @iErrorCount INT 
SET @iErrorCount = 0
SET XACT_ABORT ON
BEGIN TRAN Tran_Custom

INSERT/UPDATE/DELETE ....
SET @iErrorCount=@iErrorCount+@@error  --加到增删改操作的后面

IF @iErrorCount=0 
BEGIN   
    COMMIT TRAN Tran_Custom
END 
ELSE   
BEGIN   
    ROLLBACK TRAN Tran_Custom
END