A: GET W (Student): Student. SN = 00291"DELETE W
B: GET W: Student. SN = 00291"in StudentDELETE W
C: HOLD W (student): Student. SN = 00291"DELETE W
D: HOLD W: Student. SN = 00291"in StudentDELETE W
举一反三
- 已知s1="I "am a student.",s2='I \'am a student',则print(s1,s2)的输出结果为( ) A: I 'am a student. I 'am a student B: I "am a student. I 'am a student C: I "am a student. I \'am a student D: 程序报错
- If the teacher fails the student, there will be trouble for the student.
- 删除学生信息表student的所有数据，正确的语句为（ ）。 A: delete from student B: drop all from student C: delete all * from student D: drop table student
- You must be an active student ______ a passive student.
- She is a new student. (改为一般疑问句） A: She is a new student? B: She isn't a new student? C: Is she a new student? D: Isn't she a new student?
内容
- 0
【单选题】删除 student 表的所有数据 A. delete * from student B. delete all from student C. delete from student D. delete rows from student
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【多选题】针对学生选课数据库S_T，以下()操作实现了student表与sc之间的自然连接。 A. select student.* , cno, grade from student join sc on student.sno=sc.sno B. select student.* , sc.* from student , sc where student.sno=sc.sno C. select student.sno, sname, ssex, sage, sdept , cno, grade from student , sc where student.sno=sc.sno D. select student.* , cno, grade from student , sc where student.sno=sc.sno
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设Student为学生关系，SC为学生选课关系，Sn0为学生号，Sname为学生姓名，Cn0为课程号，执行下列SQl。语句的查询结果是（ ）。SeleCt Student. SnameFrom Student, SCWhere Student. Sno= SC. SnoAnd SC. Cno=’C1’ A: 选出选修Cl课程的学生信息 B: 选出选修Cl课程的学生姓名 C: 选出Student中学生号与SC中学生号相等的信息 D: 选出Student和SC中的一个关系
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从学生表中删除学号为“1001”的学生记录，正确的SQL语句是______。 A: DROP FROM Student WHERE 学号="1001" B: DROP FROM Student FOR 学号="1001" C: DELETE FROM Student WHERE 学号="1001" D: DELETE FROM Student FOR 学号="1001"
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删除当前数据库中的表Student的语句应当是（ ）。 A: DELETE TABLE Student B: DELETE Student C: DROP Student D: DROP TABLE Student