Question:
Guest details and Total Charges paid
Display guest details who paid total charges RS.50000 and above. Write a query to fetch Guest id, Guest name and Sum of total charges. Give alias name to total charges as TOTALPAID. Sort the result by guest id.

Code:
Main.sql
select guest.guestid, guest.name, sum(booking.totalcharge) as TOTALPAID from guest join booking on booking.guestid=guest.guestid group by guest.guestid,guest.name having sum(booking.totalcharge)>=50000 order by guest.guestid;