oracle9i和oracle10g多版本共存,oracle9i不能鏈接問題總結

oracle9i用pl/slq developer報" ORA-12154: TNS:沒法解析指定的鏈接標識符"錯誤解決方案總結:機器上前後安裝了oracle9i和oracle10g,安裝好後,10g能用pl/sql developer正常鏈接,但9i老是連不上,老是提示:"ORA-12154: TNS:沒法解析指定的鏈接標識符",網上說oracle目錄下:c:\oracle\ora9i\network\admin下的listener.ora配置有問題

配置以下:LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = TCP)(HOST = china-efe28f3fd)(PORT = 1521))
      )
      (ADDRESS_LIST =
        (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
      )
    )
  )


SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oracle\ora9i)
      (PROGRAM = extproc)
    )
  )

檢查一遍,沒發現什麼問題,

後來又查了查資料,說多是pl/sql developer的Oracle Home設置有問題,個人是英文版的,在Tools菜單-Perferences...下 Oracle Home 選擇一下你要鏈接的數據庫實例名,如個人是ora9i,保存,關閉,從新打開,問題解決.總結一下,以供你們參考.