Relational Database Management Systems (RDBMS) are the most widely used database management systems in the world. They have been instrumental in the development of modern computing and data management. An RDBMS uses a relational model to organize and manipulate data. This model represents data as… Read More »What is a Relational Database Management System (RDBMS)?
Database indexing is a powerful technique that can help optimize query performance and speed up data retrieval. In this beginner’s guide, we’ll explore the basics of database indexes, including their structure, storage blocks, and searching complexity. We’ll also look at the advantages and disadvantages of… Read More »Unleashing the Power of Database Indexes: A Simple Beginner’s Guide
Nowadays it is hard to believe that the term Relational Model exists for 52 years. However, it does, indeed. The history of Relational Databases of the XXth century started in June 1970.
In 1970 Edgar Codd, a computer scientist from California published a paper called “A Relational Model of Data Large Shared Data Banks”. The paper introduced the concept of the Relational Model, Normalization, and operations on relations, and covered Data Redundancy and Consistency topics.
In this post, we will review the rationale standing behind the model, go through the related terms, and definitions, and reinforce the foundation upon which our Relational Database knowledge must rest.
Read More »At The Cradle of Database History: Edgar Codd and His Groundbreaking Relational Data Model