我对这个问题有点困难,因为我不确定如何在sql Server中执行此操作.
基本上,我想在数据库中插入一个新行,获取刚刚插入的PK值(相同的查询)并将其输出回任何称为存储过程的行：
CREATE PROCEDURE Users_Insert
-- Add the parameters for the stored procedure here
@userid int output,@name varchar(50),@surname varchar(50),@email varchar(200),@password varchar(50),@location varchar(50)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
insert into Users(FirstName,LastName,Email,Password,Location)
values(@name,@surname,@email,@password,@location);
GO
@userid = @@IDENTITY;
END
我在MysqL中完成了以下操作：
CREATE PROCEDURE Users_Insert(@userid int output,@location varchar(50)
BEGIN
insert into Users(FirstName,@location);
set @userid = last_insert_id();
END
Msg 102,Level 15,State 1,Procedure Users_Insert,Line 18
Incorrect Syntax near ‘@userid’.
坦率地说,我不确定我是否正确地声明了输出参数,有人能提出建议吗？
解决方法
您需要将值分配给@userid！另外,我建议使用SCOPE_IDENTITY()而不是@@ IDENTITY：
CREATE PROCEDURE Users_Insert
-- Add the parameters for the stored procedure here
@userid int output,@location);
-- make an actual **assignment** here...
SELECT @userid = SCOPE_IDENTITY();
END
See this blog post for an explanation as to WHY you should use SCOPE_IDENTITY over @@IDENTITY
