CREATE TABLE "users" (
	"id" int,
	"email" varchar(255),
	"password" varchar(255)
);
CREATE TABLE "admins" (
	"id" int,
	"email" varchar(255),
	"password" varchar(255)
);
CREATE TABLE "cards" (
	"id" int,
	"card_number" varchar(255) CONSTRAINT card_number REFERENCES card(number)
);
CREATE TABLE "statuses" (
	"id" int,
	"user_id" int CONSTRAINT users_id REFERENCES users(id),
	"card_id" int CONSTRAINT cards_id REFERENCES cards(id),
	"online_count" int,
	"online_at" datetime,
	"offline_at" datetime,
	"status" bool,
	"value" int
);