𝗗𝗲𝗺𝗼𝗰𝗿𝗮𝗰𝘆 𝗶𝘀 𝗺𝗲𝘀𝘀𝘆 , 𝗮𝗻𝗱 𝗶𝘁’𝘀 𝗵𝗮𝗿𝗱 𝗶𝘁’𝘀 𝗻𝗲𝘃𝗲𝗿 𝗲𝗮𝘀𝘆 .
if the data has not been changed, no new rows will appear.