“查询选修了3门以上课程的学生的学生号”，正确的SQL语句是( )。
A: SELECT S#FROM SC GROUP BY S#WHERE COUNT(*)>3
B: SELECT S#FROM SC GROUP BY S#HAVING COUNT(*)>3
C: SELECT S#FROM SC ORDER BY S#HAVING COUNT(*)>3
D: SELECT S#FROM SC ORDER BY S#WHERE COUNT(*)>3
A: SELECT S#FROM SC GROUP BY S#WHERE COUNT(*)>3
B: SELECT S#FROM SC GROUP BY S#HAVING COUNT(*)>3
C: SELECT S#FROM SC ORDER BY S#HAVING COUNT(*)>3
D: SELECT S#FROM SC ORDER BY S#WHERE COUNT(*)>3
举一反三
- 下列SQL语句中，正确的是（ ）。 A: SELECT S B: , SNAME FROM SC GROUP BY S C: SELECT S D: FROM SC GROUP BY S E: HAVING COUNT(*)>3 F: SELECT S G: ,Cname FROM SC GROUP BY S H: WHERE COUNT(*)>3 I: SELECT S J: FROM SC WHERE COUNT(*)>3 GROUP BY S
- 下列SQL语句中，正确的是（ ）。 A: SELECT S B: , SNAME FROM SC GROUP BY S C: D: SELECT S E: FROM SC GROUP BY S F: HAVING COUNT(*)>3 G: SELECT S H: ,Cname FROM SC GROUP BY S I: WHERE COUNT(*)>3 J: SELECT S K: FROM SC WHERE COUNT(*)>3 GROUP BY S L:
- 若要求“查询选修了3门以上课程的学生的学号”,正确的SQL语句是( ) A: SELECT sNo FROM SC GROUP BY sNo WHERE COUNT(*)> 3 B: SELECT sNo FROM SC GROUP BY sNo HAVING COUNT(*)> 3 C: SELECT sNo FROM SC ORDER BY sNo WHERE COUNT(*)> 3 D: SELECT sNo FROM SC ORDER BY sNo HAVING COUNT(*)> 3
- 查询选修了2门课程以上的学生学号（） A: select sid,count(*) from sc group by sid having count(*)>=2 B: select sid,count(*) from sc group by sid where count(*)>=2 C: select sid,count(*) from sc where count(*)>=2 group by sid D: select sid,count(*) from sc group by cid having count(*)>=2
- 下列查询语句中，错误的是（）。 A: SELECT Sno， COUNT（*） FROM SC GROUP BY Sno B: SELECT Sno FROM SC GROUP BY Sno WHERE COUNT（*）> 3 C: SELECT Sno FROM SC GROUP BY Sno HAVING COUNT（*）> 3 D: SELECT Sno FROM SC GROUP BY Sno