急急急 如何在SQL*Plus中，用命令行关闭和开启Oracle数据库服务器？

运行sql*plus的步骤
同时按住”win“（一般在ctrl键和alt键中间）+”r“（字母键）
输入”cmd“，之後按回车（enter）
在命令行输入”sqlplus“，进入oracle的sql*plus，输入数据库的用户名和密码进行登录操作
oracle的sql*plus是与oracle进行交互的客户端工具，借助sql*plus可以查看、修改数据库记录。在sql*plus中，可以运行sql*plus命令与sql语句。

startup 开启
shutdown immediate 关闭

1. Set up your Oracle environment.

If you are using Windows operating system, do the followings:

set ORACLE_HOME=C:\oracle\product\10.2.0.1.0
set ORACLE_SID=xxxxxxx

(Change C:\oracle\product\10.2.0.1.0 to your own Oracle Home)
(Change xxxxxxx to your database name)

If you are using UNIX (e.g. HP-UX) operating system, do the followings:

export ORACLE_SID=xxxxxxx
export ORACLE_HOME=/u01/app/oracle/product/10.2.0.1.0

(Change /u01/app/oracle/product/10.2.0.1.0 to your own Oracle Home)
(Change xxxxxxx to your database name)

2. connect as sysdba

Start SQL*Plus, and connect to the database as sysdba. Use the following command:

connect sys/aaaaaaa@bbbbbbb as sysdba

(aaaaaaa is your password for sys)
(bbbbbbb is the connection string defined in tnsnames.ora)

3. Shut down or start up database.

To shut down, use this command:

shutdowm immediate

If the database has problem, and it hangs, use this command:

shutdown abort

To startup, use this command:

startup

If the database does not use spfile, and the pfile is not in the default location, use this command:

startup pfile=C:\aaa\bbb\ccc\ddd\init.ora

(C:\aaa\bbb\ccc\ddd\init.ora should be the init.ora file’s path of your database)

Good luck!