用PL\SQL打开oracle数据库时出现了这种错误:ORA-12514: TNS:listener does not currently know of service requested in connect descriptor。
解决方法如下:
在安装目录下: /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
将:SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\oracle\product\10.1.0\Db_1)
(PROGRAM = extproc)
)
)
改为:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\oracle\product\10.1.0\Db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GOLBAL_DBNAME= orcl)
(ORACLE_HOME = E:\oracle\product\10.1.0\Db_1)
(SID_NAME=orcl)
)
)
然后重启服务和监听以后,登陆正常。
解决方法如下:
在安装目录下: /home/oracle/oracle/product/10.2.0/db_1/network/admin/listener.ora
将:SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\oracle\product\10.1.0\Db_1)
(PROGRAM = extproc)
)
)
改为:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = E:\oracle\product\10.1.0\Db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GOLBAL_DBNAME= orcl)
(ORACLE_HOME = E:\oracle\product\10.1.0\Db_1)
(SID_NAME=orcl)
)
)
然后重启服务和监听以后,登陆正常。
本文解决了一个常见的Oracle数据库连接问题:ORA-12514错误。通过修改listener.ora文件中的SID_LIST_LISTENER配置,并重启服务及监听,成功解决了该问题。
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