A religious ideology, for example, explains many questions as “God’s will”, with no further explanation necessary. For example, each order can contain multiple items. In this part three of the series, we'll learn how to work with multiple tables that have relationships with each other. Pam Ramsden does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment. The teams work together to create satisfied and happy customers over the long term. Relationship marketing helps retain customers over the long term, which results in customer loyalty rather than customers purchase once or infrequently. Hold customer events to connect with customers and build a community. These companies have created a bond so deep with their customers that if you were to talk negatively or criticize them, their customers will gladly defend it.