PHPMySQLIntroduction«PreviousNextChapter»MySQListhemostpopularopen-sourcedatabasesystem.WhatisMySQL?MySQLisadatabase.ThedatainMySQLisstoredindatabaseobjectscalledtables.Atableisacollectionofrelateddataentriesanditconsistsofcolumnsandrows.Databasesareusefulwhenstoringinformationcategorically.Acompanymayhaveadatabasewiththefollowingtables:"Employees&...