In SQL without aggregation, grouping, or nesting.

users(email, name, pwd, city, gender)

products(pid, descr)

sales(sid, lister, pid, edate, descr, cond, rprice)

bids(bid, bidder, sid, bdate, amount)

items(sid, no, pid, descr)

reviews(reviewer, reviewee, rating, rtext, rdate)

previews(rid, pid, reviewer, rating, rtext, rdate)

Question:

List sid and lister of all sales that end over the next 3 days but have no bids with an amount reaching or exceeding the reserved price. Hint: Check out date and time functions in SQLite.