Hi, Thanks for your help so far, here is format of my database, the name I have given the database is ... DATA I can see there is a lot to learn, but I am always ready to learn and understand. I am not sure how to write to both of you on this forum, but thanks to you both. Is there anyway to upload my actual small database file on here ? ID Unix_Time Day Date Time IP_24_Temperature IP_24_Humidity -- --------- --- ---- ---- ----------------- -------------- 1 1602091505 Wednesday 07 10 20 18:25 NULL 55 2 1602091545 Wednesday 07 10 20 18:25 15.6 NULL 3 1602091855 Wednesday 07 10 20 18:30 15.7 NULL 4 1602091885 Wednesday 07 10 20 18:31 16.8 NULL 5 1602091929 Wednesday 07 10 20 18:32 19 NULL 6 1602092105 Wednesday 07 10 20 18:35 NULL 54.5 7 1602092155 Wednesday 07 10 20 18:35 15.9 NULL 8 1602092405 Wednesday 07 10 20 18:40 NULL 54.4 9 1602092455 Wednesday 07 10 20 18:40 16 NULL