oracle报以下错误：
Caused by: java.lang.RuntimeException: org.activiti.engine.ActivitiException: couldn't check if tables are already present using metadata: Cannot create PoolableConnectionFactory (Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
说明oracle的连接名错误即sid错误
来源：CSDN
作者：qq_34412985
链接：https://blog.csdn.net/qq_34412985/article/details/104010865