There are a lot of benefits that can be sought using database which can measure the value of their individual customers, send targeted promotion to any segment of their customer and prospect lists, track promotion efforts, measure responses, purchase and the return on investment for every dollar spent on their promotional efforts and etc. For example, your clothing store is going to have sale on children's clothing. Rather than mail a postcard to the whole customer list, you mail the postcard only to customers who have purchased children's clothing in the past. The result of that targeting effort will be reduced marketing costs and increased return on your investment. (www.itsallgoodwebdesign.com/html/database_marketing.html).
The benefit of the database marketing to the firm is the firm can easily build up a customer loyalty by using it. For example, perhaps the best known database success story is American Airlines Advantage Club which was the pioneer in airline loyalty programs. The