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http://blog.csdn.net/cncco/archive/2006/05/15/729356.aspx
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Public Function fBackupDatabase_a(ByVal sBackUpfileName$ _
, ByVal sDataBaseName$ _
, Optional ByVal sIsAddBackup As Boolean = False _
) As String
Dim iDb As ADODB.Connection
Dim iConcStr$, iSql$, iReturn$
On Error GoTo lbErr
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http://hi.baidu.com/samxx8/blog/item/7048f8de1725835894ee37b4.html
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inner join sysobjects d on a.id=d.id
where d.name='SPF_Users' and exists(SELECT 1 from sysobjects where xtype=' ......