SQL stands for Structured Query Language. It is the standard language used to communicate with databases. Think of a database as a digital storage system where information is organized into tables. Few are some of the examples that SQL can helps us with: Retrieve data Insert new data Update existing data Delete unwanted data Analyze information Database: A database is an organized collection of data stored electronically. Instead of keeping data in spreadsheets or paper files

Image source In the beginning study of the DBMS keys, we are confused about the DBMS keys concepts because there are many different types...