Question

我有2个表Winner和player，包含标准信息（姓氏，名字，ID ......）以及两个布尔列Validity和WinnerState（默认为0）。

我想要做的是创建一个SQL Server程序，它将从Players Table中随机选择一条记录，然后将其插入Winner Table并同时更新在播放器Table中选择的记录的WinnerState列。 / p>

Winner表包含播放器的外键，以便选择此播放器的跟踪。

我已经尝试过一个程序，但它会为所有玩家表更新此列：

create procedure selectUpdate
    As
    insert into Winner (Fname,Lname,Adress,City,Tel,Player_ID) from
    select TOP 1 (Fname,Lname,Adress,City,Tel,ID) from Player order by NEWID()
    Update Player
    SET WinnerState=1

我可以让它只更新随机选择的记录吗？谢谢！

Answer 1

您可以在一个声明中完成所有操作：

create procedure selectUpdate
as
begin
    set nocount on

    ;with p as (
       select top 1 Fname,Lname,Adress,City,Tel,ID,WinnerState
       from Player
       where WinnerState = 0 -- this is necessary I assume
       order by checksum(NEWID())
    )
    update p
    set WinnerState = 1
    output
        inserted.Fname,
        inserted.Lname,
        inserted.Adress,
        inserted.City,
        inserted.Tel,
        inserted.ID into Winner (Fname,Lname,Adress,City,Tel,Player_ID)
end

Answer 2

假设ID是INT并且是Player表的主键：

DECLARE @id INT

SELECT TOP 1 @id = ID FROM Player ORDER BY NEWID()

insert into Winner (Fname,Lname,Adress,City,Tel,Player_ID) from
select Fname,Lname,Adress,City,Tel,ID from Player WHERE ID = @id

Update Player
SET WinnerState=1 WHERE ID = @id

SQL Server从两个表插入更新

2 个答案: