A family of Microsoft relational database management systems designed for ease of use.
On the Create tab of the ribbon, click Query Design.
Add the table.
Add the PartNo, Price1, Price2, Price3 and Price4 fields to the query grid.
Click Totals in the Show/Hide group of the Query Design tab of the ribbon.
Leave the Total option for PartNo set to Group By, and change that of the other four fields to Max.