查看Oracle状态：

ps -ef|grep ora

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查看监听

lsnrctl stat?

启动监听

lsnrctl start?

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两种启动oracle

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[root@oracle ~]# su - oracle

[oracle@oracle ~]$ sqlplus / as sysdba;

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1、sqlplus sys/passwd as sysdba,

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? >startup

? >exit --退出SQL

2、sqlplus /nolog?

? conn / as sysdba

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? >startup

? >exit?--退出SQL

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ps -ef|grep ora