ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
ORA-12514:TNS环境:主库:rac2(192.168.0.162)备库:memberstor-host(192.168.0.182)两个库已经在broker下建立了dataguard,而且一切正常当中但是当我尝试用rac2操作:dgmgrl>connectsys/******@192.168.0.182时,就出现了:UnabletoconnecttodatabaseORA-12514: