使用OUTPUT子句的SQL過程不返回值

Question

我已經構建了一個過程，該過程應該將新行插入到表中並返回其ID。

CREATE PROCEDURE [InsertFood] 
AS 
DECLARE @ID TABLE (foodId INT) 
insert into TblFood 
OUTPUT INSERTED.foodId INTO @ID(foodId) 
default values 
select * from @ID 
return 

當我運行這個程序，它總是返回0。

Answer 1

閱讀本MSDN後提供例如：Retrieving Identity or Autonumber Values

例子：

CREATE PROCEDURE dbo.InsertCategory 
    @CategoryName nvarchar(15), 
    @Identity int OUT 
AS 
INSERT INTO Categories (CategoryName) VALUES(@CategoryName) 
SET @Identity = SCOPE_IDENTITY() 

---

CREATE PROCEDURE [InsertFood] 
AS 
DECLARE @ID int 
--insert data in table Example 
    ----INSERT INTO Production.Location (Name, CostRate, Availability, ModifiedDate) 
    ----VALUES ('Damaged Goods', 5, 2.5, GETDATE()); 
--insert data in table 
select @ID = SCOPE_IDENTITY() 
return @ID 

你可以使用Scope_Identity()獲取最後一個值。