How to manage database with Indexing and Retrieve Data fast

Description

How do work indexes in MySQL and How to fetch data from database fast .how to indexing MySQL database MySQL Managing Database Index

How to manage database Index and indexing MySQL database.How to Retrieve Data From the SQL Server Database faster.

Faster way of fetching and Retrieve data from database and from List in MySQL SQL oracle and mongo database step by step

Database index is a data structure and used for improves the speed of operations in a database table and implement more columns

The syntax of Unique Index is

CREATE UNIQUE INDEX index_nameset ON table_nameset ( column1, column2, column3, column4,...);