Databases are used for storing, maintaining, and accessing any sort of data. They collect information on people, places, or things. That information is gathered in one place so that it can be observed and analyzed. Databases can be thought of as an organized collection of information.

Normalization is a database design technique that reduces data redundancy and eliminates undesirable characteristics like insertion, update, and deletion anomalies. Normalization rules divide larger tables into smaller tables and link them using relationships. The purpose of normalization in SQL is to eliminate redundant (repetitive) data and ensure data is stored logically.

SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems. SQL statements are used to perform tasks such as updating data on a database or retrieving data from a database.

In this course, you will learn about DB normalization & SQL programming. This course would enable a learner to earn his HackeerRank SQL International Certification.