ORA-12514 TNS:listener does not currently

ORA-12514: TNS:listener does not currently know of service requested in connect descriptor 是一个Oracle数据库连接错误。该错误表示监听程序无法识别连接描述符中所请求的服务。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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