单选题You issue this statement：ALTER DATABASE BACKUP CONTROLFILE TO TRACE； What does the statement generate？（）A A text copy of the control file.B A binary copy of the control file.C A file containing a SQL statement which will re-create the database.D A fil
题目
单选题
You issue this statement：ALTER DATABASE BACKUP CONTROLFILE TO TRACE； What does the statement generate？（）
A
A text copy of the control file.
B
A binary copy of the control file.
C
A file containing a SQL statement which will re-create the database.
D
A file containing a SQL statement which will re-create the control file.