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The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each.One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file:ALTER DATABASE CLEAR UN

题目

The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each.One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file:ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3;Which action should you perform immediately after using this command?（）

A. You should perform a log switch

B. You should make a backup of the database

C. You should switch the database to the NONARCHIVELOG mode

D. You should shut down the database instance and perform a complete database recovery

相似考题

1.以下对枚举类型名的定义中正确的是______。A．enum a={one,two,three}；B．enum a{one=9，two=-1,three}；C．enum a={"one"，"two"，"three"};D．enum a{"one"，"two"，"three"}；

2.以下对枚举类型名的定义中正确的是 ( )A．enuma＝{one，two，three}；B．enuma{one＝9，two＝-1，three}；C．enum a＝｛"one" "two"，"three"}；D．enum a{"one"，"two"，"three"}；

3.以下对枚举类型名的定义中正确的是______。A．enum a={one,two,three};B．enum a {one=9,two=1,three};C．enum a={"one","two","three"};D．enum a{"one","two","three"};

4.以下对枚举类型名的定义中正确的是______。A．enum a={one, two,three}；B．enum a{one=9,two=1，three}；C．enum a={"one"，"two","three"}；D．enum a{"one", "two"，"three"}；

参考答案和解析
参考答案：B
更多“The database is running in the ARCHIVELOG mode. It has three redo log groups with one memb ”相关问题

  • 第1题：

    以下对枚举类型名的定义中正确的是

    A．enum a {one=9,two=-1,three};

    B．enum a={“one”, “two”, “three”};

    C．enum a {“one”, “two”, “three”};

    D．enum a={one, two, three};


    enum a｛a1,a2,a3｝;

  • 第2题：

    5、以下对枚举类型名的定义中正确的是（）。

    A．enum a={one,two,three};

    B．enum a{one=9,two,three};

    C．enum a={"one","two","three"};

    D．enum a{"one","two","three"};


    enum a {one=9,two=-1,three};

  • 第3题：

    1、以下对枚举类型名的定义中正确的是（）。

    A．enum a={one,two,three};

    B．enum a {one=9,two=-1,three};

    C．enum a={"one","two","three"};

    D．enum a {"one","two","three"};


    enum a {one=9,two=-1,three};

  • 第4题：

    8、以下对枚举类型名的定义中正确的是

    A．enum a {one=9,two=-1,three};

    B．enum a={“one”, “two”, “three”};

    C．enum a {“one”, “two”, “three”};

    D．enum a={one, two, three};


    enum a｛a1,a2,a3｝;

  • 第5题：

    7、以下对枚举类型名的定义中正确的是（）。

    A．enum a={one,two,three};

    B．enum a {one=9,two=-1,three};

    C．enum a={"one","two","three"};

    D．enum a {"one","two","three"};


    enum a {one=9,two=-1,three};

  • 第6题：

    以下对枚举类型名的定义中正确的是（）。

    A．enum a={one,two,three};

    B．enum a {one=9,two=-1,three};

    C．enum a={"one","two","three"};

    D．enum a {"one","two","three"};


    A

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