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http://blog.csdn.net/cncco/archive/2006/05/15/729356.aspx
’**Ä£ ¿é Ãû£ºfBackupDatabase_a
’**Ãè    Êö£º±¸·ÝÊý¾Ý¿â,·µ»Ø³ö´íÐÅÏ¢,Õý³£»Ö¸´,·µ»Ø""
’**µ÷    ÓãºfBackupDatabase_a "±¸·ÝÎļþÃû","Êý¾Ý¿âÃû"
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’**          sBackUpfileName  »Ö¸´ºóµÄÊý¾Ý¿â´æ·ÅĿ¼
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’**          sIsAddBackup     ÊÇ·ñ×·¼Óµ½±¸·ÝÎļþÖÐ
’**˵    Ã÷£ºÒýÓÃMicrosoft ActiveX Data Objects 2.x Library
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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
   
    ’´´½¨¶ÔÏ


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