题目内容:
有SQL语句: SELECTDISTINCT系号FROM教师WHERE工资>:ALL(SELECT工资FROM教师WHERE系号=”O2”、
与如上语句等价的SQL语句是 A.SELECTDISTINCT系号FROM教师WHERE工资>=(SELECTMAX(工资.FROM教师;
WHERE系号=”02”)
B.SELECTDISTINCT系号FROM教师WHERE工资>=(SELECTMlN(工资.FROM教师;
WHERE系号=”02” ”)
C.SELECTDISTINCT系号FROM教师WHERE工资>=ANY(SELECT工资FROM教师;
WHERE系号=”02” ”)
D.SELECTDISTINCT系号FROM教师WHERE工资>=SOME(SELECT工资FROM教师;
WHERE系号=”02” ”)
参考答案:
答案解析: