Question

我有一个由

生成的表Partners

CREATE TABLE Partners ( 
    id UNIQUEIDENTIFIER NOT NULL DEFAULT NEWID(),
    name NVARCHAR(50) NOT NULL,
    email NVARCHAR(254) NOT NULL, -- 254 is optimal length according to http://stackoverflow.com/questions/1199190/what-is-the-optimal-length-for-an-email-address-in-a-database
    PRIMARY KEY (id)
);

尝试插入行并检索插入行的id：

CREATE PROCEDURE AddPartner 
     @name NVARCHAR(50), @email NVARCHAR(254)
AS
BEGIN
    SET NOCOUNT ON 
    INSERT INTO Partners (name,email)
    OUTPUT INSERTED.id INTO @new_guid
    VALUES (@name,@email)   
    SELECT @new_guid
END

假设我想（1）调用AddPartner (name,email)等于('some dude','dude192@gmail.com）并返回id（称之为dude_id）以便我可以稍后（2）当我插入另一行时使用它：

INSERT INTO Answers (question_id,partner_id,val) VALUES (1,dude_id,24);

我该怎么做？并且（1）和（2）之间的GO语句会破坏一切吗？

Answer 1

将Output Parameter添加到您的程序

CREATE PROCEDURE Addpartner (@name     NVARCHAR(50),
                             @email    NVARCHAR(254),
                             @new_guid UNIQUEIDENTIFIER output)
AS
  BEGIN
      SET NOCOUNT ON
      INSERT INTO Partners
                  (name,email)
      OUTPUT INSERTED.id INTO @new_guid
      VALUES      (@name,@email)
  END 


DECLARE @new_guid AS UNIQUEIDENTIFIER 

EXEC Addpartner 'some dude', 'dude192@gmail.com', @new_guid  output

INSERT INTO Answers
            (question_id,partner_id,val)
VALUES      (@output_identity,'dude_id',24);

如何检索和存储这些guid以供以后使用？

1 个答案: