ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务(另一种情况)
1 listener.ora配置
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = test.oracle.com)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(SID_NAME = test)
)
)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.128.5)(PORT = 1521))
)
注意: GLOBAL_DBNAME是写出完整的名称
2 tnsnames.ora配置
MYCENT =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.128.5)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = dedicated)
(SERVICE_NAME = test)
)
)
3 侦听的服务
[oracle@cent4 admin]$ lsnrctl service
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 04-5月 -2011 20:48:55
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.128.5)(PORT=1521)))
Services Summary...
Service "test.oracle.com" has 1 instance(s).
Instance "test", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0
LOCAL SERVER
注意: 服务是test.oracle.com, 实例是test.
4 错误出现
[oracle@cent4 admin]$ sqlplus hr/hr@mycent
SQL*Plus: Release 10.2.0.1.0 - Production on 星期三 5月 4 20:49:49 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect
descriptor
Enter user-name:
5 原因分析
注意: 服务是test.oracle.com, 实例是test.
而在tnsnames.ora中服务名是 test.
只要将tnsnames.ora中服务名是 test.oracle.com, 问题即可解决.