Question

我一直在尝试使用Visual Studio中的Python访问Oracle数据库。至于现在，在这个数据库中我知道我的用户名和密码，id和端口。没什么。

我现在所做的是：

我已安装Oracle 11g Express Edition并将ORACLE_HOME环境变量设置为C：\ oraclexe \ app \ oracle \ product \ 11.2.0 \ server
添加了cx_Oracle库
写了这段代码

IP = 'IPADDRESS' 端口= 1521 SID = 'XE' dsn_tns = cx_Oracle.makedsn（IP，端口SID） db = cx_Oracle.connect（'username'，'password'，dns_tns）

目前我一直收到这个错误：

TNS-12505：TNS：侦听器当前不知道连接描述符中给出的SID

并无法找到解决方案;在线阅读它似乎与listener.ora有关，但我无法找到适合我的解决方案。

这是

LISTNER.ORA

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = C:\oraclexe\app\oracle\product\11.2.0\server)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = gvd-server.GLITRE-NETT.local)(PORT = 1521))
    )
  )

DEFAULT_SERVICE_LISTENER = (XE)

和tnsnames.ora

XE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = gvd-server.GLITRE-NETT.local)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = XE)
    )
  )

EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

ORACLR_CONNECTION_DATA = 
  (DESCRIPTION = 
    (ADDRESS_LIST = 
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1)) 
    ) 
    (CONNECT_DATA = 
      (SID = CLRExtProc) 
      (PRESENTATION = RO) 
    ) 
  )

我感谢任何帮助，并提前感谢大家。祝你有美好的一天！

使用Python访问远程Oracle DB

0 个答案: