Oracle数据库ORA-12560错误问题的解决办法
官网中关于ORA-12560的解释：
ORA-12560:TNS:protocoladaptererror
Cause:Agenericprotocoladaptererroroccurred.
Action:Checkaddressesusedforproperprotocolspecification.Beforereportingthiserror,lookattheerrorstackandcheckforlowerleveltransporterrors.Forfurtherdetails,turnontracingandreexecutetheoperation.Turnofftracingwhentheoperationiscomplete.
首先检查windows服务中Oracle实例相关服务是否运行：
WIN（图标键）+R