Access VBA

Three Nested Recordsets

Function fnGetsetSetAmts()
   ' On Error GoTo ErrorHandler
   On Error Resume Next
    Dim DB      As Database
    Dim RST     As Recordset
    Dim strSQL  As String
    Dim strSet  As String
    Dim X       As Long
    Dim rsSet   As Recordset
    Dim RSwrite As Recordset
    Dim Z       As Integer
    Dim varStatus   As Variant
    Dim strStatus   As String
    varStatus = SysCmd(acSysCmdClearStatus)	'Clear any Status showing
    SysCmd acSysCmdInitMeter, "Updating: ", 5263	'Init Status meter
    DoCmd.RunSQL "DELETE tblSetsetBalances.* FROM tblSetsetBalances;"	'Zap rows from file to fill
    Z = 0
    X = 0
    Set DB = CurrentDb
   Set RST = DB.OpenRecordset("Distinct_OffSets", dbOpenDynaset)
'   RST.MoveLast
'    X = RST.RecordCount
    Set RSwrite = DB.OpenRecordset("tblSetsetBalances", dbOpenDynaset)

    RST.MoveFirst
    Do Until RST.EOF
        strSQL = "SELECT DB2_BAL.ACCT_NUM, DB2_BAL.ACCUM_AMT, " _
            & "DB2_BAL.CSH_AVAIL_AMT, DB2_BAL.EQUITY_AMT, " _
            & "DB2_BAL.PCT, DB2_BAL.MAIN_AMT "
        strSQL = strSQL & vbCrLf & " FROM DB2_BAL"
        strSQL = strSQL & " WHERE DB2_BAL.ACCT_NUM =" & RST!Setsets & ";"
    
        Set rsSet = CurrentDb.OpenRecordset(strSQL, dbOpenDynaset)	'Read data from
    '    Debug.Print RST!Setsets & Chr(32) & Z
        If rsSet!ACCT_NUM = vbNullString Then GoTo BlankRecord   'If no records returned, drop out
        RSwrite.AddNew        'Fills with current Inv Acct #s
        X = X + 1
            RSwrite!SetsetAcct = rsSet!ACCT_NUM
            RSwrite!T1 = rsSet!CSH_AVAIL_AMT
            RSwrite!AFC  = rsSet!ACCUM_AMT
            RSwrite![CALL] = rsSet!MAIN_AMT
            RSwrite![EQTY%] = rsSet!PCT * 100
            RSwrite!ReportDate = Now()
        RSwrite.Update
BlankRecord:
        RST.MoveNext
        strStatus = FormatNumber((Z / 5264) * 100, 3) & "%   " & X
       varStatus = Application.SysCmd(acSysCmdInitMeter, strStatus, Z)
        Z = Z + 1
        
        DoEvents
    Loop
    Set RST = Nothing
    Set rsSet = Nothing
    Set RSwrite = Nothing
    MsgBox "Done"
    varStatus = SysCmd(acSysCmdClearStatus)
    Exit Function
ErrorHandler:
    MsgBox Err.Number & " was reported " & vbCrLf & Err.Description, vbCritical
    varStatus = SysCmd(acSysCmdClearStatus)
End Function