【单选题】课程题库.doc (3).doc A. 课程题库.doc (3).doc B. 课程题库.doc (3).doc C. 课程题库.doc (3).doc D. 课程题库.doc (3).doc
【单选题】课程题库.doc (3).doc A. 课程题库.doc (3).doc B. 课程题库.doc (3).doc C. 课程题库.doc (3).doc D. 课程题库.doc (3).doc
LC和SC分别具有几个工作站系统() A: LC:3,SC:3 B: LC:4,SC:2 C: LC:2,SC:4 D: LC:4,SC:3
LC和SC分别具有几个工作站系统() A: LC:3,SC:3 B: LC:4,SC:2 C: LC:2,SC:4 D: LC:4,SC:3
不戴镜,远距测定内隐斜2△,近距测定外隐斜3△,记录为()。 A: CC:E2△X’3△ B: SC:E2△X’3△ C: SC:X2△X’3△ D: SC:E2△E’3△
不戴镜,远距测定内隐斜2△,近距测定外隐斜3△,记录为()。 A: CC:E2△X’3△ B: SC:E2△X’3△ C: SC:X2△X’3△ D: SC:E2△E’3△
“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
“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
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
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
智慧职教: 3 对于DOC的持有者,应是______。
智慧职教: 3 对于DOC的持有者,应是______。
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: 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
实验报告(3),以附件形式提交Word版本,命名为:学号+姓名+(3),即如:21145239张三(3).doc 或21145239张三(3).docx
实验报告(3),以附件形式提交Word版本,命名为:学号+姓名+(3),即如:21145239张三(3).doc 或21145239张三(3).docx
下列查询语句中,错误的是()。 A: ASELECT Sno, COUNT(*) FROM SC GROUP BY Sno B: BSELECT Sno FROM SC GROUP BY Sno WHERE COUNT(*)> 3 C: CSELECT Sno FROM SC GROUP BY Sno HAVING COUNT(*)> 3 D: DSELECT Sno FROM SC GROUP BY Sno
下列查询语句中,错误的是()。 A: ASELECT Sno, COUNT(*) FROM SC GROUP BY Sno B: BSELECT Sno FROM SC GROUP BY Sno WHERE COUNT(*)> 3 C: CSELECT Sno FROM SC GROUP BY Sno HAVING COUNT(*)> 3 D: DSELECT Sno FROM SC GROUP BY Sno
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
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