Question

我目前正在构建一个小型系统，可以为我们的用户提供为我们的合作伙伴执行不同任务的奖励。为伙伴Y做X会奖励用户Z金额。我们不是一直转移大量小额账户，而是希望为所有用户活动提供一天的综合奖金。

我想构建一个可以在午夜左右由SQL Server代理运行的存储过程。此存储过程将总结用户收入并将其添加到其帐户。但是，我当时只能设法让这个用户工作1个。是否有可能在1次调用存储过程中管理（比方说100）用户收入？

为了将其分解，我想要一个存储过程，它可以在1次调用中处理100个用户的总事务，而不是100次调用存储过程，当时是1个用户。这可能吗？

提前致谢！

修改

以下是我一直在研究的一些示例代码：

ALTER PROCEDURE [dbo].[rewards_dailybonus]
AS
BEGIN
SET NOCOUNT ON;

DECLARE @userid INT = 0
DECLARE @partnerId INT = 0
DECLARE @totalPoints INT = 0
DECLARE @theDate DATETIME = ''


    -- This SELECT should return 100 rows
    SELECT @userid = userid, @partnerId = partnerId, @totalPoints = SUM(points), @theDate = CAST(created AS DATE)
    FROM rewards_movements WITH (NOLOCK)
    WHERE
        transferred IS NULL
        AND
        CAST(created AS DATE) != CAST(GETDATE() AS DATE)
    GROUP BY userid, partnerId, CAST(created AS DATE)
    ORDER BY CAST(created AS DATE), userid ASC

    -- For each row from above SELECT, execute another Stored Procedure to add the points to a users account
    EXEC registerAccountMovement @userid, @totalPoints, 'Account movement notice'

    -- Set the points as transferred
    UPDATE rewards_movements SET transferred = GETDATE() WHERE userid = @userid AND partnerId = @partnerId
END

Answer 1

好吧，我认为代码看起来像这样：

with toupdate as (
      select userid, sum(earnings) as NewEarnings
      from tblEarnings e
      where e.earningdate = cast(getdate() -1 as date)
      group by userid
     )
update users
    set earnings = earnings + newearnings
    from toupdate
    where users.userid = toupdate.userid

这显然只是一个草图，但它以面向集合的方式展示了你想要的东西。

在MSSQL存储过程中处理SELECT中的多行

1 个答案: