What is the total amount of all the donations made by the donor who made the highest donation in a single amount? Indicate the essay title to where he/she made his/her biggest donation.
total amount of all the donations refers to sum(donation_total); highest donation refers to max(donation_total)
SELECT T2.donation_total, T1.title FROM essays AS T1 INNER JOIN donations AS T2 ON T1.projectid = T2.projectid WHERE T2.donation_total = ( SELECT MAX(donation_total) FROM donations )