A.selectmax(price)fromdrink
B.selectmin(price)fromdrink
C.selectavg(price)fromdrink
D.selectsum(price)fromdrink
第1题
A.CREATE
B.UPDATE
C.DELETE
D.INSERT
第2题
A.selectfirstname+'.'+lastnameas'name'fromemployee
B.selectfirstname+'.'+lastname='name'fromemployee
C.select'name'=firstname+'.'+lastnamefromemployee
D.selectfirstname,lastnamefromemployee
第3题
A.selectclassid,count(*)asnumfromshopgroupbyclassid
B.selectclassid,count(*)asnumfromshopgroupbyname
C.selectclassid,sum(*)asnumfromshopgroupbyaddress
D.selectclassid,sum(*)asnumfromshopgroupbyclassid
第4题
A.Select stu_name from student_info where stu_grade=80 order by stu_id desc
B.Select stu_name from student_info where stu_grade=80 order by stu_id
C.Select stu_name from student_info where stu_grade like 80 group by stu_id
D.Select stu_name from student_info where stu_grade=80 order by stu_id asc
第5题
第6题
A.①②
B.③④
C.①③ ③
D.②③
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