ORA-12505, TNS:listener does not currently know of SID given in connect descriptor

1、错误描述

执行请求的操作时遇到错误:

Listener refused the connection with the following error:
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
 

供应商代码 12505

2、错误原因

      Oracle数据库SID出现错误，导致出现报错

3、解决办法

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