COUNT and MAX logics in BEX query Designer

Hi Experts,

I am into implementation project, I have below scenarios which will have to derive from BW and BEX.

1. Client needs No.of data missing count in Report.

Ex:

                 01/02             02/02          03/02      Data missing count

Plant          2000              -                30000           1

                   -                    -                40000            2

                  10000             5000        60000            0

Based on the plant ,calday and keyfigure he want to check no.of count for data missing.

2. Max orders filled based on the Customers.

2.Min orders filled based on th customers.

Kindly please help how to implement these logics  in Bex designer .

Thanks in Advacen,

Chinna