下列SQL语句中,能够实现“给用户teacher授予查询SC的权限”这一功能的是()。
A.GRANT SELECT on SC to teacher
B.REVOKE SELECT on SC to teacher
C.GRANT SELECT on TABLE to teacher
D.REVOKE SELECT on TABLE to teacher
A.GRANT SELECT on SC to teacher
B.REVOKE SELECT on SC to teacher
C.GRANT SELECT on TABLE to teacher
D.REVOKE SELECT on TABLE to teacher
A.DROP PROC CountProc1;
B.DELETE PROC CountProc1;
C.DROP PROCEDURE CountProc1;
D.DELETE PROCEDURE CountProc1;
A.SELECT姓名FROMSWHEREEXISTS(SELECT*FROMSCWHERE学号=学号AND课程号='C2')
B.SELECT姓名FROMSWHERE学号IN(SELECT学号FROMSCWHERE课程号='C2')
C.SELECT姓名FROMSINNERJOINSCON学号=sc.学号WHERE课程号='C2'
D.SELECT姓名FROMSWHERE学号=(SELECT学号FROMSCWHERE课程号='C2)
A.select*fromt_studentorderbyscorelimit100
B.select*fromt_studentorderbyscore
C.selectname,scoreaspfromt_studentorderbyplimit100
D.selectname,scoreassfromt_studentorderbyscorelimit100