ORA-31520: CDC subscription string already subscribes to publication ID string
文档解释ORA-31520:CDCsubscriptionstringalreadysubscribestopublicationIDstringCause:AChangeDataCapturesubscriptionintendedforimportalreadysubscribedtoapublication.Ac...
ORA-25242: cannot change subscriber name from string to string without FIRST_MESSAGE option
文档解释ORA-25242:cannotchangesubscribernamefromstringtostringwithoutFIRST_MESSAGEoptionCause:AnattemptwasmadetochangethesubscribernamewhileusingtheNEXT_MESSAGEorNE...
ORA-31430: subscriber view exists
文档解释ORA-31430:subscriberviewexistsCause:Aviewthatisalreadyinusewasspecifiedforthesubscriberview.Action:CalltheSUBSCRIBEprocedureusingadifferentsubscriberviewnam...
ORA-24062: Subscriber table string inconsistent with queue table string
文档解释ORA-24062:SubscribertablestringinconsistentwithqueuetablestringCause:Thesubscribertablehasnotyetbeensuccessfullyimported.Action:Importthesubscribertablebefo...
ORA-31521: CDC subscription string already subscribes to publication ID string column string
文档解释ORA-31521:CDCsubscriptionstringalreadysubscribestopublicationIDstringcolumnstringCause:AChangeDataCapturesubscriptionintendedforimportalreadysubscribedtoapu...
ORA-24050: subscribers are not supported for exception queue string
文档解释ORA-24050:subscribersarenotsupportedforexceptionqueuestringCause:AnADD_SUBSCRIBER,ALTER_SUBSCRIBER,orREMOVE_SUBSCRIBERprocedurewasissuedonaqueuethatwascreat...
MySQL Error number: MY-010632; Symbol: ER_NDB_SCHEMA_DISTRIBUTION_REPORTS_UNSUBSCRIBE; SQLSTATE: HY000
文档解释Errornumber:MY-010632;Symbol:ER_NDB_SCHEMA_DISTRIBUTION_REPORTS_UNSUBSCRIBE;SQLSTATE:HY000Message:NDBSchemadist:Datanode:%dreportsunsubscribefromnode%d,subs...
RxJava2的doOnSubscribe方法和doOnNext方法的理解
1.doOnSubscribe是事件被订阅之前(也就是事件源发起之前)会调用的方法，这个方法一般用于修改、添加或者删除事件源的数据流。2.doOnNext是观察者被通知之前(也就是回调之前)会调用的方法，说白了就是最终回调之前的前一个回调方法，这个方法一般做的事件类似于观察者做的事情，只是自己不是最终的回调者。（观察者...
