题目
A.SELECT * FROM S WHERE SDEP = ‘CS’ AND SAGE BETWEEN 15 AND 19;
B.SELECT * FROM S WHERE SDEP = ‘CS’ AND SAGE <= 19 AND SAGE >= 15;
C.SELECT * FROM S WHERE SDEP = ‘CS’ OR SAGE BETWEEN 15 AND 19;
D.SELECT * FROM S WHERE SDEP = ‘CS’ AND SAGE <= 19 OR SAGE >= 15;
第1题
A.SELECT SNAME, SAGE, SSEX FROM S WHERE SAGE > (SELECT SAGE FROM S WHERE SNAME = '刘晨');
B.SELECT SNAME, SAGE, SSEX FROM S WHERE SNAME = '刘晨';
C.SELECT SNAME, SAGE, SSEX FROM S WHERE SAGE> (SELECT SAGE WHERE SNAME = "刘晨");
D.SELECT SNAME, SAGE, SSEX FROM S WHERE SAGE>'王华'.SAGE;
第2题
A.(1)处填:count(*)
B.(1)处填:count(学号)
C.(2)处填:学号
D.(2)处填:课程号
第3题
A.默认值
B.有效性规则
C.索引
D.表之间的关系
第4题
第5题
第6题
第7题
第8题
A.课号,成绩
B.学号,成绩
C.学号,课号
D.学号,姓名,成绩
第9题
A.600
B.5100
C.5500
D.6100
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