https://www.postgresql.org/
https://www.postgresql.org/download/
https://www.postgresql.org/docs/
Website:http://www.odysseyweb.idv.tw/
Discord:https://discord.gg/ht4mwMG
YouTube:https://www.youtube.com/channel/UCQwGJo1JXmIR-SMY8tXL5Uw
十六進制轉十進制