CREATE TABLE `stock_batches` (
	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
	`product_id` integer NOT NULL,
	`arrived` text NOT NULL,
	`batch_no` text NOT NULL,
	`mfg` text NOT NULL,
	`expiry` text NOT NULL,
	`rack_id` integer,
	`distributor_id` integer,
	`is_default` integer DEFAULT false NOT NULL,
	FOREIGN KEY (`product_id`) REFERENCES `products`(`id`) ON UPDATE no action ON DELETE no action,
	FOREIGN KEY (`rack_id`) REFERENCES `storage_spaces`(`id`) ON UPDATE no action ON DELETE no action,
	FOREIGN KEY (`distributor_id`) REFERENCES `distributors`(`id`) ON UPDATE no action ON DELETE no action
);