转 ORA-12514: TNS:监听程序当前无法识别连接描述符中请求的服务
PL/SQL连接Oracle数据库的时候 报"ORA-12514: TNS:监听程序当前无法识别连接描述符中请求的服务" 错误
本例原因：
安装Oracle时一般默认实例都是orcl，发现有人不按套路出牌，改了名字，如图
解决方法：
在Oracle安装目录 找到listener.ora文件 路径为 D:oracleproduct11.2.0dbhome_1NETWORKADMIN
(根据自己情况查找) 修改：
# listener.ora Network Configuration File: D:oraclproduct11.2.0dbhome_1
etworkadminlistener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = D:oracleproduct11.2.0dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:D:oracleproduct11.2.0dbhome_1inoraclr11.dll")
)
(SID_DESC =
(GLOBAL_DBNAME = JTW)
(ORACLE_HOME = D:oracleproduct11.2.0dbhome_1)
(SID_NAME = JTW)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
)
)
红色部分为新添加内容，JTW为监听的实例名
然后修改(添加)instantclient_11_2 etworkadmin nsnames.ora
MyOracle =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = jtw)
)
)
重启Oracle监听
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版权声明：本文为CSDN博主「麦田」的原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/itmyhome1990/article/details/49363243