ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
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ORA-12514, TNS:listener does not currently know of service requested in connect descrip
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错误信息 "ORA-12514: TNS:listener does not currently know of service requested in connect de
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navicat连接oracle数据库失败 一、问题的原因 Navicat连接oracle数据库这服务名不正确（默认ORCL） ![在这里插入图片描述][202003
相关 ORA-12514: TNS:listener does not currently know of service requested in connect descriptor解决方案！！！！
PLSQLdeveloper连接一台服务器（Oracle 10g），Oracle安装在虚拟机上（XP），本来用得好好的，突然遇到“ORA-12514: TNS:listene
不念不忘少年蓝@相关 ORA-12514: TNS: listener does not currently know of service requested in connect descriptor
最近在新的电脑上安装了 Oracle 11g。 但是在使用 navicat 连接 Oracle 数据库的时候没有连接上，报以下错误。 
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相关 【FAQ】ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
需求来源 oracle连通性问题 -------------------- 问题一 ORA-12514: TNS:listener does not curre
相关 ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
在window7 64bit下安装oracle11g安装正常,安装完了以后使用也正常； 但在计算机重启后，重新登陆时就出现PL/SQL Deveplor ORA-1251
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出现这种问题的情况一般是两种： 1.看看是不是监听服务没有起来 2.检查有没有修改IP地址,计算机名称 除此之外在网上查资料的时候还有一种：[http://blog
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