How to fill the first column '#' of matrix with row id in user form?

Hi All,
I am having a user defined form in which, I m having a matrix and m populating the matrix with the output of an sql query.
something like this:
SQL_Str= "select col1,col2,......from.... "
OPopDBTable.ExecuteQuery(SQL_Str)
oMatrix.AddRow()
oMatrix.Columns.Item("Col3").DataBind.Bind("PopTable", "col1")
oMatrix.Columns.Item("Col2").DataBind.Bind("PopTable", "col2")
oMatrix.LoadFromDataSource()
Now, in this, how can I assign row number to first column ('#' column ) ??
regards,
Binita

Ah...the ROW_NUMBER() was posted by Petr - also thank you (again)
With my example-query from the other thread:
SELECT
     CAST(
             ROW_NUMBER() OVER (ORDER BY T1.U_LogNo ASC) AS INT
        ) AS RowCnt,
     T1.Code,
     T1.U_ParcelNo,
     T1.U_LogNo
FROM
     [@XXX_EXAMPLE] T1
WHERE
     T1.U_ParcelNo='132006'
ORDER BY
     T1.U_LogNo ASC
...this works for me (it's quickly copied from several subs/func. - I hope it's not too much disordered):
DtLogs.ExecuteQuery(query)
oMtxLogs.Columns.Item("0").DataBind.Bind("DT_LOGS", "RowCnt")
oMtxLogs.Columns.Item("1")........
oMtxLogs.LoadFromDataSource()

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How to fill the first column '#' of matrix with row id in user form?

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