ORA-12514: TNS:listener does not currently know of service requested in connect
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用PL/SQL连接在ORCAL 上创建的数据库,
一开始开启的服务太多，全禁了，出现：ora-12541 TNS on listrner
在服务里找到： OracleOraDb10g_home1TNSListener ，开启它。
出现：ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
已知：tnsnames.ora 设置没错
步骤：
1，检查 服务是否启动了 －－－已启动
2，
- ERROR - ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
- ORA-12514: TNS:listener does not currently know of service requested in connect 错误
- ORA-12514: TNS:listener does not currently know of service requested in connect
- 遭遇ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
- ora-12514:TNS:listener does not currently know of service requested in connect
- ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
- ORA-12514: TNS:listener does not currently know of service requested in connect
- ORA-12514: TNS:listener does not currently know of service requested in connect
- ORA-12514: TNS:listener does not currently know of service requested in connect
- ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
- ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
- ORA-12514: TNS: listener does not currently know of service requested in connect descriptor
- ora-12514:TNS:listener does not currently know of service requested in connect descriptor
- ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
- ora-12514:TNS:listener does not currently know of service requested in connect descriptor
- ORA-12514: TNS:listener does not currently know of service requested in connect descript
- ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
- 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
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