用ASP打开远端MDB文件

假如你用ODBC connection (DSN or DSN-less)来访问远端的(UNC path), 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"

dedecms.com

Set RS = Conn.Execute(SQL)


你得确定使用ASP的用户有NT的及共享访问权限。
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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