What is SQL server ?

To understand what exactly is SQL Server, we need to understand what is DBMS and RDBMS. DBMS stands for Database Management System. When we have a huge database with us, we would need a proper management system which would help us organise this database.  There are 4 types of database management systems:

• Hierarchical
• Network
• Relational
• Object-Oriented.

Out of these database management systems, SQL Server comes under the category of Relational database management system.  A relational database refers to a database that stores data in a structured format, using rows and columns. This makes it easier to locate and access specific values within the database. It is “relational” because the values within each table are related to each other. The relational structure makes it possible to run queries across multiple tables at once.