create table if not exists p_keys(
id integer primary key auto_increment,
p_key varchar(100) not null,
number_of_devices integer not null default 1,
installed_devices integer not null default 0,
end_at varchar(100) not null,
created_at varchar(100) not null
);


insert into p_keys(p_key,number_of_devices,installed_devices,end_at,created_at) value("1234-9765-0998",100,0,"2022-08-27");