CREATE TABLE `court_blocks` ( `id` text PRIMARY KEY NOT NULL, `court_id` text, `date` text NOT NULL, `start_time` text NOT NULL, `end_time` text NOT NULL, `reason` text NOT NULL, `created_by` text NOT NULL, `created_at` integer NOT NULL, FOREIGN KEY (`court_id`) REFERENCES `courts`(`id`) ON UPDATE no action ON DELETE cascade, FOREIGN KEY (`created_by`) REFERENCES `users`(`id`) ON UPDATE no action ON DELETE cascade ); --> statement-breakpoint ALTER TABLE users ADD `theme_preference` text DEFAULT 'system' NOT NULL;