不是牛人不要进:求改ACCESS的语句怎么表达?
有2个表,AnswerPaper答卷(总分)表、AnswerPaperData答题表
AnswerPaper
------------------
guidex Mark(试卷总分)
aaa``````17
bbb``````20
AnswerPaperData表:
QuestionGUID(题号)
Mark(该题得分)
-------
guidex AnswerPaper QuestionGUID Mark(该题得分)
1```````aaa `````````001``````````2 --》 5
2```````aaa``````````002``````````5
3```````aaa``````````003``````````10
4```````bbb``````````001``````````3 --》 5
5```````bbb``````````003``````````7
6```````bbb``````````004``````````10
我想把题号QuestionGUID=001 的得分都改成5分后更新答卷(总分)表,下面是重新计算答卷表总分分的更新语句:
UPDATE AnswerPaper As AP Set mark =(select sum(Mark) from AnswerPaperData as D where D.AnswerPaper = AnswerPaper.guidex)
where AP.guidex in(Select AnswerPaper from AnswerPaperData where
QuestionGUID = '001')
语句执行应该得到:
AnswerPaper
------------------
guidex Mark(试卷总分)
aaa```````20
bbb```````22
在SQLServer2000下是对的,请问怎么用jet-sql写出来并能在ACCESS下执行啊?