ORA-12514: TNS:listener does not currently know of service requested in connect

今天启动连接Oracle的PLSQL时突然报错ORA-12514: TNS:listener does not currently know of service requested in connect 这是因为listener.ora文件出现了问题，打开你安装 oracle目录下的的listener.ora文件，我是安装在虚拟机上的 找到这样一段配置： SID_LIST_LISTENER =

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