Database normalization and DenormalizationNormalization.Database normalization is the process of organizing the fields and tables of a relational database to minimize redundancy. Normalization usually involves dividing large tables into smaller (and less redundant) tables and defining relationships between them. The objective is to isolate data so that additions, deletions, and modifications of a field can be made in just one table and then propagated through the rest of the database using the defined relationships.DenormalizationDenormalization is the process of attempting to optimize the read performance of a database by adding redundant data or by grouping data.In some cases, denormalization is a means of addressing performance or scalability in relational database software.

Normalization is the process of breaking a big table into two or more smaller tables so that we can avoid the insert, update and delete anomalies that may occur.