I have both components, I just don't know how I'm supposed to connect them and which pin is connected to where?Look in the library to see if the D-sub connector is there. If it is, pull it into a schematic. If it isn't, create it and pull it into a schematic.
Create a symbol for the Hall sensor and pull it into the schematic.
Connect the two components with signal nets.
Export the schematic to the pc board layout program.
Define the pc board shape.
Route the connections.
ak