ora-12514 tns 监听程序当前无法识别连接描述符中请求的服务

1用pl/sql登入数据库，报ora-12514,tns...,在dos窗口下能正常服务数据库，

于是修改 listener.ora文件

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = tlx)

(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)

#(PROGRAM = extproc)---把这行删掉或注释

)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

#(ADDRESS = (PROTOCOL = IPC)(KEY = tlx))

(ADDRESS = (PROTOCOL = TCP)(HOST = IP)(PORT = 1521))

)

)

2 tnsnames.ora 没问题。

TLX =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = IP)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = tlx)

)

)

3 如果以上两各文件修改错误，就会引起另一个错误，ora-28547

4 重启监听，正常。