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听力原文: 由题目中的图片可以得出:查询的条件是“数学成绩大于数学平均分”,需要显示的字段是“学号”和“数学”,SQL语句中也应包含这些数据。
下图是使用查询设计器完成的查询,与该查询等价的SQL语句是______。
在下图中,与查询设计器的筛选标签中所设置的筛选功能相同的表达式是______。
A.成绩表.综合成绩>=80AND成绩表.综合成绩=<90
B.成绩表.综合成绩>80AND成绩表.综合成绩<90
C.80<=成绩表.综合成绩<=90
D.80<成绩表.综合成绩<90

A.shangxuebA.cn/images/2010q3/ct_ctabm_ctabchoose_00066(201006).jpg'>
在下图中,与查询设计器的筛选标签中所设置的筛选功能相同的表达式是______。B.shangxuebA.cn/images/2010q3/ct_ctabm_ctabchoose_00067(201006).jpg'>
A.成绩表.综合成绩>=80AND成绩表.综合成绩=<90
B.
C.综合成绩>80AND成绩表.综合成绩<90
C.
D.综合成绩<=90
D.

【参考答案】

A
解析: 由题目中的图片可以得出:查询条件是“综合成绩在80和90之间,包含80和90”。答案C不符合SQL语......

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