Question

CREATE PROCEDURE dbo.usp_InsertUpdateVehicleWheel
(
  @vehicleWheelId int,
  @vehicleWheelName varchar(20)
)
AS
    IF @vehicleWheelId = 0
       INSERT INTO VehicleWheel (VehicleWheelId, VehicleWheelName)
       VALUES (@vehicleWheelId, @vehicleWheelName)
    else 
       UPDATE VehicleWheel 
       SET VehicleWheelName = @vehicleWheelName
       WHERE VehicleWheelId = @vehicleWheelId

    RETURN----------

当我想插入包含属性

的表（VehicleWheel）时

VehicleWheelId int
VehicleWheelName varchar(20))

其中Id是自动生成的，我想插入名称，然后发生错误：

无法在表中插入identity列的显式值当IDENTITY_INSERT设置为OFF时，“VehicleWheel”。

请告诉我如何克服这个错误......

感谢你.......

Answer 1

错误清楚地说明错误（INSERT列列表中的IDENTITY列VehicleID）......

将insert语句更改为：

Insert into VehicleWheel (VehicleWheelName) values (@vehicleWheelName)

所以SP现在是：

CREATE PROCEDURE dbo.usp_InsertUpdateVehicleWheel
(
    @vehicleWheelId int,
    @vehicleWheelName varchar(20)
)

AS

    if @vehicleWheelId=0
            INSERT INTO VehicleWheel (VehicleWheelName) VALUES (@vehicleWheelName)
    ELSE 
    Update VehicleWheel set
    VehicleWheelName = @vehicleWheelName
    where VehicleWheelId = @vehicleWheelId
    RETURN----------

Answer 2

你需要将IDENTITY INSERT设置为ON，我不知道，感觉错误很明显

你可以这样做：

SET IDENTITY_INSERT table ON

表格是你的表格

与表中的插入有关

2 个答案: