Code RoomPosts beating their author's average
HardPrep Room Coding #5095

Posts beating their author's average

SQLAlgorithms & data structuresSenior~13 min

Return published posts whose views exceed the average views of that author's published posts. Give `title` and `views`, ordered by title.

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 13 min

Expected, in this order

titleviews
Indexes explained4200
Replication lag5300

Your result

Run your query to compare.

1 more set of rows are waiting. Free with an account.