Code RoomRank within each course
HardPrep Room Coding #5109

Rank within each course

SQLAlgorithms & data structuresSenior–Staff~15 min

Rank graded students within each course, best first. Return `title`, `name`, `grade` and `place`, ordered by course then place then name. Tied grades share a place.

What a strong answer looks like

Say what the query is meant to return before you write it, and name the shape of the answer: how many rows, grouped by what. Then watch the NULLs and the duplicates, because that is where most of these are lost.

Run onlyA query runs as one statement, so there is nothing to step through. Run it and read the rows.

0:00 of about 15 min

Expected, in this order

titlenamegradeplace
CompilersWren791
CompilersUli642
DatabasesUli911
DatabasesVic911
DatabasesTam883
NetworksTam721

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