一.PL/SQL登录时报错
最近遇到了两种登录时报的错
1.ORA-12514 listener does not currently know of service requested in connect description
2.ORA-12514 no listener
尝试了网上的各种方法,最终如下方法比较有效。做法是在oracle11g安装目录下找到listener.ora文件,并在里面添加两段话。
例如我oracle安装在F盘app文件夹下,listener.ora文件的路径如下:
F:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN\listener.ora
找到文件后添加两段话,如下所示:
# listener.ora Network Configuration File: F:\app\Administrator\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 = F:\app\Administrator\product\11.2.0\dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:F:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")
)
#解决 ORA-12514 listener does not currently know of service requested in connect description
(SID_DESC =
(SID_NAME = ORCL)
(ORACLE_HOME = F:\app\Administrator\product\11.2.0\dbhome_1)
(GLOBAL_DBNAME = ORCL)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 26.47.124.201)(PORT = 1521))
)
)
#加了下面这段,解决 ORA-12514 no listener
ORCL_26.47.124.201 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 26.47.124.201)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ORCL)
)
)
)
ADR_BASE_LISTENER = F:\app\Administrator
二.导入导出表问题
在使用pl/sql工具里的导入导出dmp表时,会出现闪退问题,导表失败。之后采用了添加环境变量的方式解决这个问题。
添加环境变量即右击计算机图标-->属性-->高级系统设置-->环境变量 。添加如下两个变量:
ORACLE_HOME F:\app\Administrator\product\11.2.0\dbhome_1
TNS_ADMIN %ORACLE_HOME%/NETWORK/ADMIN/
参考:https://blog.csdn.net/qq_36228442/article/details/79453547