sqlplus问题

sqlplus问题

成功安装oracle后,用sqlplus,出现如下错误提示:SQL*Plus: Release 8.1.7.0.0 - Production on Wed Jun 12 09:31:16 2002

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Enter user-name: system
Enter password:
ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Intel SVR4 UNIX Error: 2: No such file or directory
      
你还没有启动数据库!!!

运行
lsnrctl start
sqlplus internal
sqlplus>startup

还有Sqlplus的用法是

sqlplus 用户名/密码@服务名