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  • SQL 游标使用实例 no

    IF EXISTS(SELECT *FROM sysobjects WHERE name='sp_ContestSubmit')  
    DROP PROC sp_ContestSubmit
    GO
    -- =============================================
    --
    Author: zqt
    --
    Create date: 2011-11-25
    --
    Desc: 系统管理员批量给未交卷的考生交卷-竞赛
    --
    =============================================
    Create proc sp_ContestSubmit
    @GroupID int --考核ID
    as
    --申明一个游标
    DECLARE MyCursor CURSOR
    FOR select PK_UserExamID,FK_UserID,FK_ExamOrContestID from Score_UserExam where IsComplete=0 AND FK_ExamOrContestID in(select PK_ContestInfoID from Contest_Info where FK_ContestGroupID=@GroupID)

    --打开一个游标
    OPEN MyCursor

    --循环一个游标
    DECLARE @UserExamID int ,@UserID int ,@ExamManageID int
    FETCH NEXT FROM MyCursor INTO @UserExamID, @UserID,@ExamManageID
    WHILE @@FETCH_STATUS =0
    BEGIN
    --获取考试考试分数
    DECLARE @UserExamScore int
    select @UserExamScore=sum(Score) from Score_UserAnswer where FK_UserID=@UserID AND FK_UserExamID=@UserExamID

    --修改考生交卷信息
    UPDATE [Score_UserExam] SET [Score] =@UserExamScore,[IsComplete] = 1,[EndTime] = getdate(),[DurationSecs] = datediff(ss,BeginTime,getdate()) where PK_UserExamID=@UserExamID
    FETCH NEXT FROM MyCursor INTO @UserExamID, @UserID,@ExamManageID
    END

    --关闭游标
    CLOSE MyCursor
    --释放资源
    DEALLOCATE MyCursor

    /* 测试
    exec sp_ContestSubmit 1
    */
    GO

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  • 原文地址:https://www.cnblogs.com/252e/p/2223581.html
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