Anomalies in DBMS are the taboos . You do them and instantly your colleagues will curse you every time they have to do some operations on your DBMS. My rule is , that I always try to understand the meaning of word before understanding the concept, since English is not my native language . This …
ERD Terminologies are the terms such as entity , attributes their types and Keys that are responsible to create relationships between entities. Database Management Systems have been playing an important roles in our lives for decades now . It is helping businesses to grow and store their data, which later on used by Data Analysts …
Dr. Codd was a mathematician who proposed a new model for a database , which is known to us as Relational Database Management System. He came up with twelve rules which every true relational database should follow . Let’s go through these and if you have a hands-on-experience with databases. See how much have you …
Database Management System Models are the approaches to store data logically which you may encounter out in the industry. Below are the few basic ones. Database Management System Models : Hierarchical database Network database Relational database So far we have discussed about what is a database and database management systems. You can view both articles …
DBMS Models defines the logical design and structure of a database and defines how data will be stored, accessed and updated in a database management system. There have been few proposed models which were used & then due to limitations in each of them . They got replaced by new DBMS Models. Most widely used …