A.Patch Set For Update B.Patches Set Update C.Patch Sets Update D.Patch Set Update
A.重命名控制文件 B.設(shè)置數(shù)據(jù)庫(kù)為歸檔或非歸檔模式 C.刪除一個(gè)表空間 D.刪除一個(gè)用戶 E.重新創(chuàng)建控制文件
A.ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP1 B.ALTER DATABASE DROP LOGFILE MEMBER’’D:\REDO01.LOG’’ C.ALTER DATABASE DROP LOGFILE GROUP 1 D.ALTER DATABASE CLEAR LOGFILE GROUP 1