标准SQL基本查询模块的结构是A)SELECT…FROM…ORDER BYB)SELECT…WHERE…GROUP BYC)SELECT…WHERE
A.SELECT...FROM...ORDER BY
B.SELECT...WHERE...GROUP BY
C.SELECT...WHERE...HAVING
D.SELECT...FROM...WHERE
标准SQL基本查询模块的结构是
A.SELECT. . . FROM. . . ORDER BY
B.SELECT. . . WHERE. . . GROUP BY
C.SELECT. . . WHERE. . . HAVING
D.SELECT. . . FROM. . . WHERE.
标准SQL基本查询模块的结构是 ______。
A.SELECT…FROM…ORDER BY
B.SELECT…WHERE…GROUP BY
C.SELECT…WHERE…HAVING
D.SELECT…FROM…WHERE
A.SELECT…FROM…ORDERBY
B.SELECT…WHERE…GROUPBY
C.SELECT…WHERE…HAVING
D.SELECT…FROM…WHERE
A.SELECT…FROM…ORDERBY
B.SELECT…WHERE…GROUPBY
C.SELECT…WHERE…HAVING
D.SELECT…FROM…WHERE
设S为学生关系,SC为学生选课关系,Sno为学生号,CnoO为课程号,执行下面 SQL语句的查询结果是()。Select S * From S, SC When S,Sno=SC)Sno and SC)Cno='C2'
A.选出选修C2课程的学生信息
B.选出选修C2课程的学生名
C.选出S中学生号与SC中学生号相等的信息
D.选出S和SC中的一个关系
执行下列SQL语句,Result表中的记录个数是()。SELECT DISTINCT 工资 FROM 教师; WHERE 工资=(SELECT MAX(工资) FROM 教师); INTO TABLE Result
A.1
B.2
C.3
D.4