Question

我有这个插入语句

CREATE PROCEDURE s_Add$Subject 
  (@SubjectName varchar(50),
  @TheSubjectID int OUT)
AS
  INSERT INTO [Subject] (SubjectName)
    VALUES (@SubjectName)
  SET @TheSubjectID = @@IDENTITY

我不记得曾经发生过这种情况，但由于输出参数是输出，为什么要调用id来传递？然后我尝试将@TheSubjectID作为声明的变量并且它抛出一个错误，我将其设置为

declare @TheSubjectID int out

它导致错误，因为它说int的语法不正确。哦，请不要抨击我使用@@IDENTITY而不是SCOPE_IDENTITY，我更喜欢@@IDENTITY，并且从未遇到过任何问题。：）

Answer 1

试试这个

CREATE PROCEDURE s_Add$Subject (
   @SubjectName varchar(50), 
   @TheSubjectID int = NULL OUT)
AS
  INSERT INTO [Subject] (SubjectName)
    VALUES (@SubjectName)
  SET @TheSubjectID = @@IDENTITY

存储过程错误，要求为输出传递id

1 个答案: