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用ASP打开远端MDB文件

 2000-08-22 10:10:35 来源:WEB开发网   
核心提示:如果你用ODBC connection (DSN or DSN-less)来访问远端的(UNC path)数据库, OLEDB会出现以下错误信息:Microsoft OLE DB PRovider for ODBC Drivers error '80004005' [Microsoft][ODBC Mi
如果你用ODBC connection (DSN or DSN-less)来访问远端的(UNC path)数据库, OLEDB会出现以下错误信息:

Microsoft OLE DB PRovider for ODBC Drivers error '80004005'

[Microsoft][ODBC Microsoft access Driver] The Microsoft Jet database engine cannot open the file '(unknown)'. It is already opened exclusively by another user, or you need permission to view its data.

   你完全可以避免这种错误--asp和ActiveX支持两种方式打开MDB文件的DSN-less连接,或由其它机器访问MDB文件。

   1. DAO database (only for small load)

 Dim File, Conn, RS
 Const ReadOnly = False
 File = "\\server\share\file.mdb"
 Set Conn = CreateObject("DAO.DBEngine.35").Workspaces(0).OpenDatabase(File,,ReadOnly)
 Set RS = Conn.OpenRecordset(SQL)

    2. ADO + Jet OLE DB provider

 Dim Conn, RS
 Set Conn = CreateObject("ADODB.Connection")
 Conn.Provider = "Microsoft.Jet.OLEDB.4.0"
 Conn.Open "\\server\share\file.mdb"
 Set RS = Conn.Execute(SQL)

   
你得确定使用ASP的用户有NT的数据库及共享访问权限。
   假定有权限的话,你亦可访问其它机器中的开放数据连接:

  'http://www.pstruh.cz
  Set UM = CreateObject("UserManager.Server")
  UM.LogonUser "Login with the rights", "PassWord", "Domain"
...
open database
...
  UM.RevertToSelf

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Tags:ASP 打开 MDB

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