Question

这里我有一个插入行的存储过程但是如何使它返回最后插入的id而不进行另一个查询

CREATE PROCEDURE [dbo].[spInsertCriteriaItem]
@GroupID int
AS
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    insert into CriteriaItem (CriteriaGroupID) VALUES(@GroupID)
    --I don't want to make another query here
END

是否可以这样做

Answer 1

使用Sql Server，您可以使用OUTPUT子句。

像

这样的东西

DECLARE @CriteriaItem TABLE (
        ID INT IDENTITY (1,1),
        CriteriaGroupID INT
)
insert into @CriteriaItem (CriteriaGroupID)
OUTPUT INSERTED.ID
VALUES(1)

Answer 2

如果没有额外的查询，你不需要处理什么，但是如果你想要数据库中的数据，你必须查询它。

CREATE PROCEDURE [dbo].[spInsertCriteriaItem]
@GroupID int
AS
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    insert into CriteriaItem (CriteriaGroupID) VALUES(@GroupID);
    SELECT SCOPE_IDENTITY();
END

Answer 3

为什么不想再提出查询？

CREATE PROCEDURE [dbo].[spInsertCriteriaItem]
@GroupID int
AS
BEGIN
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;

    insert into CriteriaItem (CriteriaGroupID) VALUES(@GroupID);
    SELECT @@IDENTITY AS InsertedId;
END

如何使存储过程返回最后插入的id

3 个答案: