ADODB RecordSet.RecordCount 属性总是返回 -1

Question

The below code exports data correctly however my debug.print line always gives -1. I would like to retrieve the count of rows in debug.print statement. Please suggest what is wrong.

Sub TEST()

        Dim rs As Object
        Dim iCols As Integer
        Set rs = CreateObject("ADODB.Recordset")
        On Error GoTo ERR
        Dim SQLSTR As String, MYVAL As String
        MYVAL = InputBox("Enter Query")
        SQLSTR = " " & MYVAL & ""
        CONNECT_TO_DWHS
        rs.Open SQLSTR, PERSONALDBCONT

            For iCols = 0 To rs.Fields.Count - 1
                ActiveSheet.Cells(1, iCols + 1).Value = rs.Fields(iCols).Name
            Next
         Debug.Print rs.RecordCount
        ActiveSheet.Cells(2, 1).CopyFromRecordset rs
        ActiveSheet.Cells(1, 1).Select

        CLOSE_CONNECTION_TO_SQL

            With ActiveWindow
                .SplitColumn = 0
                .SplitRow = 1
                .FreezePanes = True
            End With

        Exit Sub

   ERR:
        CLOSE_CONNECTION_TO_SQL
        MsgBox "There was an error"

  End Sub

Answer 1

Try to specify the cursor location. Specify the cursor location before opening the connection.

rs.CursorLocation = adUseClient
rs.Open SQLSTR, PERSONALDBCONT
For iCols = 0 To rs.Fields.Count - 1
  ActiveSheet.Cells(1, iCols + 1).Value = rs.Fields(iCols).Name
Next
Debug.Print rs.RecordCount

Please read this article: http://www.geeksengine.com/article/recordcount-ado-recordset-vba.html

Answer 2

When you open a RecordSet as ForwardOnly (default if you don't explicit declare the cursor type) the RecordCount property returns -1.

For more check here .