Question

我有存储过程，它将输出作为临时表

Create Proc Hello (@id int,@name nvarchar(30))
as
begin 
If (OBJECT_ID('tempdb..#Welcome')  Is Not Null) Drop Table #Welcome
select * into #Welcome from hello where id=@id
If (OBJECT_ID('tempdb..#Welcomes')  Is Not Null) Drop Table #Welcomes
select * into #Welcomes from hello where name=@name

end

现在我得到2个临时表作为结果，我将在数据集中使用..

现在我需要在另一个存储过程中访问这个#welcome。我的意思是

    Create Proc HelloThere(@ids int,@name nvarchar(10)) 
    as
    begin 
      exec hello @id = @ids ,@name =@name

      //select * from #Welcome(Here i need to access the #Welcome so i can perform inner join something like below//

   select * from #welcome inner join Atable on #welcome.id=Atable.id

   end

Answer 1

存储过程中创建的临时表会在存储过程完成时自动删除，因此临时表将无法用于调用存储过程。

保持临时表的一种方法是在调用proc中显式创建表（使用CREATE TABLE或SELECT INTO），然后将其加载到被调用的proc中：

CREATE PROC Hello @id int,@name nvarchar(30)
AS
INSERT INTO #Welcome SELECT * FROM hello where id=@id;
GO

CREATE PROC HelloThere(@ids int,@name nvarchar(10)) 
AS
If OBJECT_ID(N'tempdb..#Welcome', 'U') IS NOT NULL DROP TABLE #Welcome;

SELECT * INTO #welcome FROM hello WHERE 0 = 1;

EXEC hello @id = @ids ,@name =@name;

SELECT * FROM #welcome INNER JOIN Atable ON #welcome.id=Atable.idl

GO

正如@JeroenMostert在评论中提到的那样，您可以仔细阅读http://www.sommarskog.se/share_data.html How to Share Data between Stored Procedures以获取其他技巧。

在存储过程外访问临时表

1 个答案: