CREATE TABLE `judges_teams_awards_link` ( `id` INT UNSIGNED NOT NULL AUTO_INCREMENT , `award_awards_id` INT UNSIGNED NOT NULL , `judges_teams_id` INT UNSIGNED NOT NULL , `year` INT NOT NULL , PRIMARY KEY ( `id` ) ); ALTER TABLE judges_teams_awards_link ADD UNIQUE (award_awards_id,judges_teams_id,year); ALTER TABLE `judges_teams` CHANGE `name` `name` VARCHAR( 255 ) NOT NULL; CREATE TABLE `project_specialawards_link` ( `id` INT UNSIGNED NOT NULL AUTO_INCREMENT , `award_awards_id` INT UNSIGNED NOT NULL , `projects_id` INT UNSIGNED NOT NULL , `year` INT NOT NULL , PRIMARY KEY ( `id` ) ); ALTER TABLE `schools` CHANGE `province` `province_code` VARCHAR( 2 ) NOT NULL;