What is SQL, Introduction of SQL, Structured Query Language

What is SQL, Introduction of SQL, Structured Query LanguageSQL :-
          SQL stands for Structured Query Language. It is a core language to interact with any Database. The SQL is used to create database, tables, views, indexes, inserting data into tables, updating data, updating existing objects structure, deleting existing objects etc.

The SQL divided into three major categories

  • DDL- The Data Defintion Language is used to create the objects like databases, tables, views and indexes etc.
  • DML - The Data Manipulation Language is used to perform manipulations on the existing objects like insert, update delete etc.
  • DCL - The Data Control Language is used to control the database like creating the new user, granting access to the users, invoke access from the users etc.

Data Definition Language :-

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