Nonparametric statistics refer to a statistical method in which the data is not required to fit a normal distribution. Rankings should not change.

Any data that does not fall into the traditional field structure (alpha, numeric, dates) of a relational DBMS. Examples of complex data types are bills of materials, word processing documents ...

In this article, we discuss the data model, types of data models, data modeling techniques, and examples. Also see: Best Data Modeling Tools What is a Data Model?