?今天安装Oracle,出现个问题，在此做个笔记。

ora-12514 这个问题很常见。主要是IP的问题。

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网上一搜，找到答案，需要加一段。

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listener.ora

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# listener.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
      (PROGRAM = extproc)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = doone)
      (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)  
      (SID_NAME = doone)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
      (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    )
  )

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tnsnames.ora

# tnsnames.ora Network Configuration File: D:\oracle\product\10.2.0\db_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

DOONE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = doone)
    )
  )

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

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这里主要的改动是将 计算机名改为了localhost

同时在listener.ora上加了一段
??? (SID_DESC =
????? (GLOBAL_DBNAME = doone)
????? (ORACLE_HOME = D:\oracle\product\10.2.0\db_1)?
????? (SID_NAME = doone)
??? )

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遇到过好几次，下次再碰到这个问题，应该不用再费力找了。