夜色资源站www国产在线资源,国产偷窥熟妇高潮呻吟,潮湿的心动漫在线观看免费未删减,欧美日韩国产成人精品

檢索選修四門以上課程的學生總成績(不統計不及格的課程 )，并要求按總成績的降序捧列出來。正確的 SElECT 語句是

A、SELECTS#，SUM(GRADE)FROMSCWHEREGRADE>=60CROUPBYS#ORDERBY2DESCHAVINGCOUNT(*)>=4
B、SELECTS#，SUM(GRADE)FROMSCWHEREGRADE>=60GROUPBYS#HAVINGCOUNT(*)>=4ORDERBY2DESC
C、SELECTS#，SUM(GRADE)FROMSCWHEREGRADE>=60HAVINCCOUNT(*)>=4GROUPBYS#ORDERBY2DESC
D、SELECTS#，SUM(GRADE)FROMSCWHEREGRADE＞=60ORDERBY2DESCGROUPBYS#HAVINGCOUNT(*)＞=4