Linux下开启oracle
先用oracle用户登录（在哪个用户下安装的就是哪个用户）
su - oracle
lsnrctl start
sqlplus '/as sysdba'
startup
单实例没啥问题
关闭shutdown immediate
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启动dbconsole
emctl start dbconsole
emctl status dbconsole
http://<hostname>:1158/em
关闭dbconsole
emctl stop dbconsole
