Upgrade your thinking, get the mental edge and dominate! Skip to primary content. The data science pyramid represents the importance of data and methods for analyzing it to a business. There are several ways to read this chart.

Is a disciplined technique for restructuring an existing body of code, altering its internal structure without changing its external behavior. To learn more about Refactoring, the natural starting point is the Refactoring Book. The examples are in Java, but are easily applicable to other programming languages. The base books and workbooks look at the fundamentals o.

Is a disciplined technique for improving the structure of existing code without changing the observable behavior. These pages have been created for strictly one purpose and one purpose only. As an information repository, this site presents work of several people. Who are active in the research community, rather than presenting the work of a single individual or organization.

Using Common Table Expressions to retrieve hierarchical data in NHibernate. Suppose that we have an hierarchical structure of employees in an organization. The data is stored in the MyEmployees. We have the following NHibernate mapping file for the Employee class.