环境:Oracle 11g R2 + PL SQL Developer + SQL Plus
问题:Oracle主服务和监听器服务已经启 动,使用SQL Plus能够正常连接,使用PL SQL Developer连接报次错误:ORA-12514: TNS: 监听程序当前无法 识别连接描述符中请求的服务。如图:
解决:
打开H:\Oracle\product\11.2.0\dbhome_1\NETWORK\ADMIN(不同机器目录可能不同 )目录下的listener.ora文件,发现此文件内容如下:
#listener.ora Network Configuration File: H:\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora #Generated by Oracle configuration tools. SID_LIST_LISTENER= (SID_LIST = (SID_DESC = (SID_NAME = CLRExtProc) (ORACLE_HOME =H:\Oracle\product\11.2.0\dbhome_1) (PROGRAM = extproc) (ENVS ="EXTPROC_DLLS=ONLY:H:\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll") ) ) LISTENER= (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY =EXTPROC1521)) (ADDRESS = (PROTOCOL = TCP)(HOST =localhost)(PORT = 1521)) ) ) ADR_BASE_LISTENER= H:\Oracle
修改成如下内容(注意红色部分的内容):
#listener.ora Network Configuration File:
H:\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora
#Generated by Oracle configuration tools.
SID_LIST_LISTENER=
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = ORCL)
(ORACLE_HOME =H:\Oracle\product\11.2.0\dbhome_1)
(SID_NAME = ORCL)
)
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = H:\Oracle\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS ="EXTPROC_DLLS=ONLY:H:\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
)
LISTENER=
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY =EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST =localhost)(PORT = 1521))
)
)
ADR_BASE_LISTENER= H:\Oracle
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ora12514
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