学生成绩表grade中有字段score(float),现在要把所有在55分至60之间的分数提高5分,以下sql语句正确的是
学生成绩表grade中有字段score(float),现在要把所有在55分至60之间的分数提高5分,以下sql语句正确的是
A.Update grade set score=score+5
B.Update grade set score=score+5 where score>=55 or score <=60
C.Update grade set score=score+5 where score between 55
A.d 60
D.Update grade set score=score+5 where score >=55
A.d score <=60
正确答案:CD