how will i store mysql db values as a json file code example

Example: store json in mysql

CREATE DATABASE IF NOT EXISTS `e_store`
DEFAULT CHARACTER SET utf8
DEFAULT COLLATE utf8_general_ci;

SET default_storage_engine = INNODB;

CREATE TABLE `e_store`.`brands`(
    `id` INT UNSIGNED NOT NULL auto_increment ,
    `name` VARCHAR(250) NOT NULL ,
    PRIMARY KEY(`id`)
);

CREATE TABLE `e_store`.`categories`(
    `id` INT UNSIGNED NOT NULL auto_increment ,
    `name` VARCHAR(250) NOT NULL ,
    PRIMARY KEY(`id`)
);