无奈了，只有发贴了，ora-12514错误。
无奈，只有发贴了，ora-12514错误。
发此贴纯属无奈，Google了，论坛搜索了，都没能解决问题，所以才发的帖，望版主谅解。
环境：服务端 linux as4+oracle9.2.0.4 ip：192.168.1.252 主机名：server.
客户端 win2003 oracle10gclient ip:192.168.1.254
问题如下：
sqlplus 连接出现ora-12514错误：监听程序当前无法识别连接描述符中请求的服务。
使用net manager 和 net configuration assistant测试连接的时候都是成功连接的。
服务端listener 监听正常（相关web服务使用也正常）
listener.ora 如下：
istener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server.)(PORT = 1521))
)
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /opt/ora9/product/9.2)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = xjty)
(ORACLE_HOME = /opt/ora9/product/9.2)
(SID_NAME = xjty)
)
)
服务端tnsnames.ora如下：
nsnames.ora
# Generated by Oracle configuration tools.
xjty =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server.)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = xjty)
(SID = xjty)
)
)
INST1_HTTP =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = MODOSE)
(PRESENTATION = http://HRService)
)
)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
客户端tnsnames.ora如下：
# tnsnames.ora Network Configuration File: F:\oracle\product\10.2.0\client_1\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.
XJTY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = server.)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = xjty)
)
)
客户端上手动修改过tnsnames.ora加上(SID = xjty)结果一样
将HOST换成ip结果也一样，XJTY前面没有空格，tnsping正常，如下：
F:\oracle\product\10.2.0\client_1\BIN> TNSPING.EXE gnnt
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 25-6月 -
2007 02:14:58
Copyright (c) 1997, 2005, Oracle. All rights reserved.
已使用的参数文件:
F:\oracle\product\10.2.0\client_1\network\admin\sqlnet.ora
已使用 TNSNAMES 适配器来解析别名
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
(HOST = server.)(PORT = 1521))) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NA
ME = xjty)))
OK (30 毫秒)
F:\oracle\product\10.2.0\client_1\BIN>
郁闷死了，是不是SID事情？为什么用net manager配置的时候不能配置SID?而手动修改客户端tnsnames.ora以后再进net manager就发现
服务命名里面的xjty不见了，用net configuration assistant添加说已存在。
抓狂了，因为只是很少的一点应用只要能连接查询里面的一些数据就可以了，所以也来不及系统的看书也不一定能看懂。
麻烦各位达人帮忙，万分感谢。
[解决办法]
在服务器上执行sqlplus USERNAME/PASSWORD@xjty看看是否成功。还有就是在服务器上执行lsnrctl status，看看结果是怎样的。还有就是检查客户端的sqlnet.ora，看看NAMES.DIRECTORY_PATH的值是否有tnsnames。