SQL Server-游标使用

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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