方法 1: 使用 CreateTableDef 方法
CreateTableDef 方法可创建链接表。 若要使用此方法, 创建一个新模块, 然后以下 AttachDSNLessTable 函数添加到新模块。
复制代码 代码如下:
‘//Name : AttachDSNLessTable
‘//Purpose : Create a linked table to SQL Server without using a DSN
‘//Parameters
‘// stLocalTableName: Name of the table that you are creating in the current database
‘// stRemoteTableName: Name of the table that you are linking to on the SQL Server database
‘// stServer: Name of the SQL Server that you are linking to
‘// stDatabase: Name of the SQL Server database that you are linking to
‘// stUsername: Name of the SQL Server user who can connect to SQL Server, leave blank to use a Trusted Connection
‘// stPassword: SQL Server user password
Function AttachDSNLessTable(stLocalTableName As String, stRemoteTableName As String, stServer As String, stDatabase As String, Optional stUsername As String, Optional stPassword As String)
On Error GoTo AttachDSNLessTable_Err
Dim td As TableDef
Dim stConnect As String
For Each td In CurrentDb.TableDefs
If td.Name = stLocalTableName Then
CurrentDb.TableDefs.Delete stLocalTableName
End If
Next
If Len(stUsername) = 0 Then
‘//Use trusted authentication if stUsername is not supplied.
stConnect = “ODBC;DRIVER=SQL Server;SERVER=” & stServer & “;DATABASE=” & stDatabase & “;Trusted_Connection=Yes”
Else
‘//WARNING: This will save the username and the password with the linked table information.
stConnect = “ODBC;DRIVER=SQL Server;SERVER=” & stServer & “;DATABASE=” & stDatabase & “;UID=” & stUsername & “;PWD=” & stPassword
End If
Set td = CurrentDb.CreateTableDef(stLocalTableName, dbAttachSavePWD, stRemoteTableName, stConnect)
CurrentDb.TableDefs.Append td
AttachDSNLessTable = True
Exit Function
AttachDSNLessTable_Err:
AttachDSNLessTable = False
MsgBox “AttachDSNLessTable encountered an unexpected error: ” & Err.Description
End Function
若要调用 AttachDSNLessTable 函数, 请代码, 它类似于之一以下代码示例在 Autoexec 宏中或启动窗体 Form_Open 事件中:
• | 当您使用 Autoexec, 调用 AttachDSNLessTable 函数, 并然后传递参数, 如以下所示从 RunCode 操作。
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• | 当您使用启动窗体, 将代码, 它类似于以下以 Form_Open 事件。 向 Access 数据库添加多个链接表时 注意 您必须调整编程逻辑。 |
‘//Name : CreateDSNConnection’//Purpose : Create a DSN to link tables to SQL Server’//Parameters’// stServer: Name of SQL Server that you are linking to’// stDatabase: Name of the SQL Server database that you are linking to’// stUsername: Name of the SQL Server user who can connect to SQL Server, leave blank to use a Trusted Connection’// stPassword: SQL Server user passwordFunction CreateDSNConnection(stServer As String, stDatabase As String, Optional stUsername As String, Optional stPassword As String) As Boolean On Error GoTo CreateDSNConnection_Err Dim stConnect As String If Len(stUsername) = 0 Then ‘//Use trusted authentication if stUsername is not supplied. stConnect = “Description=myDSN” & vbCr & “SERVER=” & stServer & vbCr & “DATABASE=” & stDatabase & vbCr & “Trusted_Connection=Yes” Else stConnect = “Description=myDSN” & vbCr & “SERVER=” & stServer & vbCr & “DATABASE=” & stDatabase & vbCr End If DBEngine.RegisterDatabase “myDSN”, “SQL Server”, True, stConnect ‘// Add error checking. CreateDSNConnection = True Exit FunctionCreateDSNConnection_Err: CreateDSNConnection = False MsgBox “CreateDSNConnection encountered an unexpected error: ” & Err.Description End Function
注意 如果再次, 调用 RegisterDatabase 方法 DSN 更新。若要调用 CreateDSNConnection 函数, 请代码, 它类似于之一以下代码示例在 Autoexec 宏中或启动窗体 Form_Open 事件中:
• | 当您使用 Autoexec, 调用 CreateDSNConnection 函数, 并然后传递参数, 如以下所示从 RunCode 操作。
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• | 当您使用启动窗体, 将代码, 它类似于以下以 Form_Open 事件。
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请 CreateTableDef 方法, 有关访问下列 Microsoft Developer Network (MSDN) Web 站点: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/office97/html/output/F1/D2/S5A289.asp (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/office97/html/output/F1/D2/S5A289.asp)有关 RegisterDatabase 方法, 请访问以下 MSDNWeb 站点: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/office97/html/output/F1/D2/S5A2EA.asp (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/office97/html/output/F1/D2/S5A2EA.asp)