用ASP打開遠端MDB

- 中國WEB開發者網絡 (http://www.webasp.net)
-- 技術教程 (http://www.webasp.net/article/)
--- 用ASP打開遠端MDB (http://www.webasp.net/article/15/14352.htm)

-- 作者：未知
-- 發佈日期： 2004-10-29

如果你用ODBC connection (DSN or DSN-less)來訪問遠端的(UNC path)數據庫, OLEDB會出現以下錯誤信息：

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.

　　你完全可以避免這種錯誤--ASP和ActiveX支持兩種方式打開MDB文件的DSN-less連接，或由其它機器訪問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)

你得確定使用ASP的用戶有NT的數據庫及共享訪問權限。

假定有權限的話，你亦可訪問其它機器中的開放數據連接:

http://www.pstruh.cz/

Set UM = CreateObject("UserManager.Server")

UM.LogonUser "Login with the rights", "Password", "Domain"

...

open database

...

UM.RevertToSelf

webasp.net