题目
A.select * from student where score>60 and score<80;
B.select * from student where score between 80 and 60;
C.select * from student where score>= 60 or score<=80;
D.select * from student where score>= 60 and score<=80;
第2题
A.SELECTSno,SnameFROMSCGROUPBYSno
B.SELECTSnoFROMSCGROUPBYSnoWHERECOUNT(*)>3
C.SELECTSnoFROMSCGROUPBYSnoHAVINGCOUNT(*)>3
D.SELECTSnoFROMSCORDERBYSnoHAVINGCOUNT(*)>3
第11题
A.select count(*) from emp
B.select avg(*) from emp
C.select min(*) from emp
D.select max(*) from emp
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