Notification Data table is: as per user defined functionality , user want notification as per particular any user send. if you want particular notification please follow following database structure : Normally we can use following data table structure INNODB database use because mostly common used that, its very fast loading and primary and forgen key assign. Free Teachnology provide free php tutorial as well as MySql,javascript,jquery knowlege : above image show that basic notification table structure pk_id is primary key of notification table , fk_uid is forgin key of user table of particular user primary key, Following code is create notification table : -- phpMyAdmin SQL Dump -- version 4.5.2 -- http://www.phpmyadmin.net -- -- Host: localhost -- Generation Time: Jun 07, 2018 at 12:16 PM -- Server version: 10.1.13-MariaDB -- PHP Version: 5.6.20 SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO"; SET time_zone = "+00:00"; -- -- Database: `makeathome` -- -...