Department average salary
Return each department with its average salary as `avg_salary`, rounded to the nearest whole number, counting only employees whose salary is recorded. Also return `department`.
One employee has no salary. Decide what that means before you write the query.
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 10 min
query.sql
Expected
| department | avg_salary |
|---|---|
| Engineering | 161667 |
| Sales | 120000 |
| Design | 150000 |
Your result
Run your query to compare.
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