sql - 返回 NEWSEQUENTIALID() 作为输出参数

Question

想象一个如下所示的表格:

CREATE TABLE [dbo].[test](
     [id] [uniqueidentifier] NULL,
     [name] [varchar](50) NULL
)

GO

ALTER TABLE [dbo].[test] ADD  CONSTRAINT [DF_test_id]  DEFAULT (newsequentialid()) FOR [id]
GO

使用如下所示的 INSERT 存储过程:

CREATE PROCEDURE [Insert_test]
    @name as varchar(50),
    @id as uniqueidentifier OUTPUT
AS
BEGIN
    INSERT INTO test(
        name
    )
    VALUES(
        @name
    )
END

获取刚刚插入的 GUID 并将其作为输出参数返回的最佳方法是什么？

Answer 1

使用 Insert 语句的 Output 子句。

CREATE PROCEDURE [Insert_test]
    @name as varchar(50),
    @id as uniqueidentifier OUTPUT
AS
BEGIN
    declare @returnid table (id uniqueidentifier)

    INSERT INTO test(
        name
    )
    output inserted.id into @returnid
    VALUES(
        @name
    )

    select @id = r.id from @returnid r
END
GO

/* Test the Procedure */
declare @myid uniqueidentifier
exec insert_test 'dummy', @myid output
select @myid