检索选修课程“C2”的学生中成绩最高的学生的学号。正确的SELECT语句是（）。
A: SELECTS
B: FORMSCWHEREC
C: =“C2”ANDGRADE＞＝(SELECTGRADEFORMSC
D: EREC
E: =“C2”)
F: SELECTS
G: FORMSC
H: EREC
I: =“C2”ANDGRADEIN
J: ELECTGRADEFORMSC
K: EREC
L: =“C2”)
M: SELECTS
N: FORMSC
O: EREC
P: =“C2”ANDGRADENOTIN
Q: ELECTGRADEFORMSC
R: EREC
S: =“C2”)
T: SELECTS
U: FORMSC
V: EREC
W: =“C2”ANDGRADE＞＝ALL
A: SELECTS
B: FORMSCWHEREC
C: =“C2”ANDGRADE＞＝(SELECTGRADEFORMSC
D: EREC
E: =“C2”)
F: SELECTS
G: FORMSC
H: EREC
I: =“C2”ANDGRADEIN
J: ELECTGRADEFORMSC
K: EREC
L: =“C2”)
M: SELECTS
N: FORMSC
O: EREC
P: =“C2”ANDGRADENOTIN
Q: ELECTGRADEFORMSC
R: EREC
S: =“C2”)
T: SELECTS
U: FORMSC
V: EREC
W: =“C2”ANDGRADE＞＝ALL
举一反三
- 查询选修了课程号为“C2”的学生中成绩最高的学生的学号，正确的SELECT语句是（）。 A: SELECTS B: FROMSC WHEREC C: ='C2'ANDGRADE>=ALL D: (SELECTGRADE FROMSC WHEREC E: ='C2'） F: SELECTS G: FROMSC WHEREC H: ='C2'ANDGRADEIN I: (SELECTMAX(GRADE) FROMSC WHEREC J: ='C2'） K: SELECTS L: FROMSC WHEREC M: ='C2'ANDGRADE= N: (SELECTMAX(GRADE) FROMSC WHEREC O: ='C2'） P: SELECTS Q: FROMSC WHEREC R: ='C2'ANDGRADE>=ANY S: (SELECTGRADE FROMSC WHEREC T: ='C2'）
- 检索选修课程‘C2’的学生中成绩最高的学生的学号。正确的SELECT语句是( )。 A: SELECT S B: FORM SCWHERE C C: =‘C2’ AND GRADE>=(SELECT GRADE FORM SCWHERE C D: =‘C2’) E: SELECT S F: FORM SCWHERE C G: =‘C2’ AND GRADE IN(SELECT GRADE FORM SCWHERE C H: =‘C2’) I: SELECT S J: FORM SCWHERE C K: =‘C2’ AND GRADE NOT IN(SELECT GRADE FORM SCWHERE C L: =‘C2’) M: SELECT S N: FORM SCWHERE C O: =‘C2’ AND GRADE>=ALL(SELECT GRADE FORM SCWHERE C P: =‘C2’)
- 检索选修课程“C2”的学生中成绩最高的学生的学号。正确的SELECT语句是( ). A: SELECT S B: FORM SC WHERE C C: =“C2” AND GRAD>=(SELECT GRADE FORM SCWHERE C D: =“C2”) E: SELECT S F: FORM SCWHERE C G: =“C2” AND GRADE IN(SELECT GRADE FORM SCWHERE C H: =“C2”) I: SELECT S J: FORM SCWHERE C K: =“C2” AND GRADE NOT IN(SELECT GRADE FORM SCWHERE C L: =“C2”) M: SELECT S N: FORM SCWHERE C O: =“C2” AND GRADE>=ALL(SELECT GRADE FORM SCWHERE C P: =“C2”)
- 检索选修课程‘C2’的学生中成绩最高的学生的学号。正确的select语句为（ ）。 A: select S B: from sc where C C: =‘C2’and grade>= (select grade from sc where C D: =‘C2’) E: select S F: from sc where C G: =‘C2’and grade in (select grade from sc where C H: =‘C2’) I: select S J: from sc where C K: =‘C2’and grade not in (select grade from sc where C L: =‘C2’) M: select S N: from sc where C O: =‘C2’and grade>=all (select grade from sc where C P: =‘C2’)
- 检索选修“C2”课程的学生中成绩最高的学生的学号。正确的SELECT语句是（ ）。 A: SELECT s B: FROM sc WHERE c C: =’C2’ AND grade＞＝(SELECT grade FROM sc WHERE c D: =’C2’); E: SELECT s F: FROM sc WHERE c G: =’C2’ AND grade IN(SELECT grade FROM sc WHERE c H: =’C2’); I: SELECT s J: FROM sc WHERE c K: =’C2’ AND grade NOT IN(SELECT grade FORM sc WHERE c L: =’C2’); M: SELECT s N: FROM sc WHERE c O: =’C2’ AND grade＞＝(SELECT max(grade) FROM sc WHERE c P: =’C2’);