Oracle线上故障问题解决

----重启电脑找不到sid
Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
Could not open connection

			sqlplus "/as sysdba"
SQL> 			shutdown immediate
数据库已经关闭。
已经卸载数据库。
ORACLE 例程已经关闭。
SQL>			 startup nomount;
ORACLE 例程已经启动。
SQL> 			alter database mount;
数据库已更改。
SQL> 			alter database open;

—问题2 DBLINK 连接失败
ORA-28545: 连接代理时 Net8 诊断到错误
Unable to retrieve text of NETWORK/NCR message 65535
ORA-02063: 紧接着 2 lines (起自 SQLSERVER2012)

lsnrctl stoplsnrctl start