Reference Data in separate application

Reference Data in separate application

Good Morning,
I have several applications that could be improved if they could all reference the same "parts" "customer" etc.... type database....   So in the info below what would I need to add or change fir this script to get its info from a separate customer database in a different application?

temp = Parts_Order_Form[ID = row.Part_Number];
row.Description=Parts[ID == row.Part_Number].Description;
row.Manufacture=Parts[ID == row.Part_Number].Manufacture;
row.Vendor=Parts[ID == row.Part_Number].Vendor;

Thanks,
Ryan