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I have tested your fuction. So far so good. You are so brilliant!! Thank you very much！

I have been gone for a few days too. Though the current solution is acceptible. I still would like to have a more perfect fuction which can be directly used in query with criteria. I used recordset.sort to reorder before recordset.movelast. But I don't know why it can't work.

Thank you very much!! I think It can work now. Still I have a question: is it possible to skip the first step, which is to modify the stored queries, and compile the re-order action into the function itself. Because the function may be used frequently in the database and it would be more...

If you don't mind, would you please look at the result of the fuction in the attached word file, which is the screen shot of the progrmme.

The median function code is as follows: Function Median(tName As String, fldName As String) As Single Dim MedianDB As DAO.Database Dim ssMedian As DAO.Recordset Dim RCount As Integer, i As Integer, x As Double, Y As Double, OffSet As Integer Dim qdf As QueryDef Dim prm As Parameter Set...

Up,Up,UP!!

Yes, I think that's the exact problem. The 'ssMedian' in the fuction (which is a dynaset recordset) seems to ordered according to the 'key field'. So I tried to sort this recordset according to the field that contains the value I'm trying to find the median for before the code goes to...

Sorry, but the code seems to have a problem. For example, if the query is named 'Test Query', I want to know the median value of its field 'rate', and the query has a criteria for field 'Date', like 'between [Forms]![Date Buffer]![BeginDate] And [Forms]![Date Buffer]![EndDate]', then if we use...

Thank Beetle very much!! I haven't tested throughly, but I'm too thrilled that I can't wait to reply. The problem has bothered me so long. Though I'm really a freshman in using access or SQL or VBA, I can understand the main idea of your explanation: using QueryDef in the code to re-introduce...

Several days no reply. Any clue that comes to your mind is welcome! Call for help!!!

I need to have 'median' number of required data arrays in an access database. And I found on the internet the following function which i can compile into the module and be used. The problem is that the function work well with tables and queries without criteria. However, the function can not...