Which is the correct description of the significance of the ORACLE_HOME environmental variable？（）

A、It specifies the directory containing the Oracle software.

B、It specifies the directory containing the Oracle-Managed Files.

C、It specifies the directory for database files， if not specified explicitly.

D、It specifies the base directory of Optimal Flexible Architecture （OFA） .

相关问题推荐

• Sales details are being stored on a daily basis in the SALES_2007 table. A large amount of data is added to the table daily. To save disk space, you issued the following command: ALTER TABLE sales_2007 COMPRESS FOR ALL OPERATIONS; What would be the outcome of this command?（）

  A、It produces an error because data already exists in the table.

  B、It produces an error because compression can be enabled at table creation only.

  C、It compresses all data added or modified henceforth but the existing data in the table is not compressed immediately.

  D、It immediately compresses all existing data as well as new data, resulting from either fresh additions or modifications to existing data.

  查看答案

• Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the database, you receive the following errors: Which statement should you use to resolve this issue?（）

  A、 ALTER DATABASE DROP LOGFILE GROUP 1;

  B、 ALTER DATABASE CLEAR LOGFILE GROUP 1;

  C、 ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;

  D、 ALTER DATABASE DROP LOGFILE MEMBER 'D:/REDO01.LOG';

  查看答案

• 睡眠障碍在神经症患者中极为常见，此类患者最多见的主诉是（）

  A、头昏

  B、入睡困难

  C、易惊醒

  D、多梦

  E、夜惊

  查看答案

• 下列属于监测管理的一组传染病是（）

  A、鼠疫，霍乱

  B、病毒性肝炎，新生儿破伤风，肺结核

  C、脊髓灰质炎，流行性出血热，血吸虫病

  D、白喉，猩红热，麻风

  E、麻风，血吸虫病，风疹

  查看答案

• 一般意义上来说，数据包括信息，信息是有意义的数据。

  A、对

  B、错

  查看答案