oracle数据库安装并导入数据后，通过oracle SQL Developer连接数据库时提示如下错误：ORA-12505

错误原因：

listener.ora文件内容错误(E:\app\Administrator\product\11.2.0\dbhome_1\NETWORK\ADMIN)。

调整前：

# listener.ora Network Configuration File: E:\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 = E:\app\Administrator\product\11.2.0\dbhome_1)

(PROGRAM = extproc)

(ENVS = "EXTPROC_DLLS=ONLY:E:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")

)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.106)(PORT = 1521))

)

)

ADR_BASE_LISTENER = E:\app\Administrator

调整后：

# listener.ora Network Configuration File: E:\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 = E:\app\Administrator\product\11.2.0\dbhome_1)

(PROGRAM = extproc)

(ENVS = "EXTPROC_DLLS=ONLY:E:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")

)

(SID_DESC =

(GLOBAL_DBNAME = ORCL)

(ORACLE_HOME = E:\app\Administrator\product\11.2.0\dbhome_1)

(SID_NAME = ORCL)

)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.106)(PORT = 1521))

)

)

ADR_BASE_LISTENER = E:\app\Administrator