VBA - Create ADODB.Recordset from the contents of a spreadsheet

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春和景丽
春和景丽 2020-12-17 04:03

I am working on an Excel application that queries a SQL database. The queries can take a long time to run (20-40 min). If I\'ve miss-coded something it can take a long time

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  •  清歌不尽
    2020-12-17 04:27

    Another alternative to get a Recordset from a Range would be to create and XMLDocument from the target Range and open the Recordset from that document using the Range.Value() property.

    ' Creates XML document from the target range and then opens a recordset from the XML doc.
    ' @ref Microsoft ActiveX Data Objects 6.1 Library
    ' @ref Microsoft XML, v6.0
    Public Function RecordsetFromRange(ByRef target As Range) As Recordset
            ' Create XML Document from the target range.
            Dim doc As MSXML2.DOMDocument
            Set doc = New MSXML2.DOMDocument
            doc.LoadXML target.Value(xlRangeValueMSPersistXML)
    
            ' Open the recordset from the XML Doc.
            Set RecordsetFromRange = New ADODB.Recordset
            RecordsetFromRange.Open doc
    End Function
    

    Make sure to set a reference to both Microsoft ActiveX Data Objects 6.1 Library and Microsoft XML, v6.0 if you want to use the example above. You could also change this function to late binding if so desired.

    Example call

    ' Sample of using `RecordsetFromRange`
    ' @author Robert Todar 
    Private Sub testRecordsetFromRange()
        ' Test call to get rs from Range.
        Dim rs As Recordset
        Set rs = RecordsetFromRange(Range("A1").CurrentRegion)
    
        ' Loop all rows in the recordset
        rs.MoveFirst
        Do While Not rs.EOF And Not rs.BOF
            ' Sample if the fields `Name` and `ID` existed in the rs.
            ' Debug.Print rs.Fields("Name"), rs.Fields("ID")
    
            ' Move to the next row in the recordset
            rs.MoveNext
        Loop
    End Sub
    

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