ORA-12514: TNS:listener could not resolve SERVICE_NAME given in connect 问题的解决！
应用不能连接数据库了。应用日志里发现如下错误：
ORA-12514: TNS:listener could not resolve SERVICE_NAME given in connect。
解决办法如下：
$ tnsping arsprd.emea.net
TNS Ping Utility for Solaris: Version 9.2.0.7.0 - Production on 22-JUN-2010 04:07:53
Copyright (c) 1997 Oracle Corporation. All rights reserved.
Used parameter files:
/global/oracle/orahome1/product/9.2.0/network/admin/sqlnet.ora
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.16.224.200)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = ARSPRD.EMEA.NET)))
OK (0 msec)
注意：SERVICE_NAME = ARSPRD.EMEA.NET。
$ sqlplus [email protected]
SQL*Plus: Release 9.2.0.7.0 - Production on Tue Jun 22 04:08:12 2010
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
ERROR:
ORA-12514: TNS:listener could not resolve SERVICE_NAME given in connect
descriptor
$ lsnrctl
LSNRCTL for Solaris: Version 9.2.0.7.0 - Production on 22-JUN-2010 04:08:54
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Welcome to LSNRCTL, type "help" for information.
LSNRCTL> status
Connecting to (ADDRESS=(PROTOCOL=tcp)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Solaris: Version 9.2.0.7.0 - Production
Start Date 22-JUN-2010 04:07:36
Uptime 0 days 0 hr. 1 min. 20 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /global/oracle/orahome1/product/9.2.0/network/admin/listener.ora
Listener Log File /global/oracle/orahome1/product/9.2.0/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=Orc01ud-lon01)(PORT=1521)))
Services Summary...
Service "ARSPRD.sevenspace.net" has 1 instance(s).
Instance "ARSPRD", status READY, has 1 handler(s) for this service...
The command completed successfully
注意：在linster里：Service "ARSPRD.sevenspace.net"
修改listener.ora or tnsnames.ora文件其中一个，让其与另一个文件里的配置一致就可以了.
这里的listener是动态注册的，服务名可以在初始化参数里修改。
$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.7.0 - Production on Tue Jun 22 04:06:56 2010
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.7.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.7.0 - Production
SQL> show parameter service
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
mts_service string ARSPRD
service_names string ARSPRD
SQL> alter system set service_names='ARSPRD.EMEA.NET';
System altered.
SQL>
这时再连接就可以了。