CREATE TABLE IF NOT EXISTS `video` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(250) NOT NULL,
  `author_id` int(10) NOT NULL,
  `file` varchar(250) NOT NULL,
  `date_create` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `duration` smallint(6) NOT NULL COMMENT 'длительность ролика в сек.',
  `voice` tinyint(1) NOT NULL DEFAULT '0',
  `price` double NOT NULL,
  `description` text NOT NULL,
  PRIMARY KEY (`id`)
)

CREATE TABLE IF NOT EXISTS `video_category` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `video_id` int(11) NOT NULL,
  `category_id` int(11) NOT NULL,
  PRIMARY KEY (`id`)
)

CREATE TABLE IF NOT EXISTS `video_genre` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `video_id` int(11) NOT NULL,
  `genre_id` smallint(6) NOT NULL,
  PRIMARY KEY (`id`)
)

CREATE TABLE IF NOT EXISTS `video_grade` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `video_id` int(11) NOT NULL,
  `grade_id` smallint(6) NOT NULL,
  PRIMARY KEY (`id`)
)