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How to Use Calculation of an Aggregate Function as Filter Criteria?

I have tables on booking orders for trips. Bookings (booking_id, booking_time, driver_id, customer_id) Drivers (driver_id, name) I need to identify all customers who have had at least 60% of their bookings completed by the same driver within t...

Problems in writing sql queries anyone who can write following queries?

1. List all the directors who directed a film in a leap year by using SELECT statement 2. Find the film(s) with the largest cast using SELECT statement 3. Find all actors who acted only in films before 1960 using SELECT state...
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