PostgreSQL — Subqueries & CTEs

1 PostgreSQL CTE — top salaries Hard 2 PostgreSQL CTE top earners #1 Hard 3 PostgreSQL CTE top earners #2 Medium 4 PostgreSQL CTE top earners #3 Medium 5 PostgreSQL CTE top earners #4 Hard 6 PostgreSQL CTE top earners #5 Medium 7 PostgreSQL CTE top earners #6 Medium 8 PostgreSQL CTE top earners #7 Hard 9 PostgreSQL CTE top earners #8 Medium 10 PostgreSQL CTE top earners #9 Medium 11 PostgreSQL CTE top earners #10 Hard 12 PostgreSQL CTE top earners #11 Medium 13 PostgreSQL CTE top earners #12 Medium 14 PostgreSQL CTE top earners #13 Hard 15 PostgreSQL CTE top earners #14 Medium 16 PostgreSQL CTE top earners #15 Medium 17 PostgreSQL CTE top earners #16 Hard 18 PostgreSQL CTE top earners #17 Medium 19 PostgreSQL CTE top earners #18 Medium 20 PostgreSQL CTE top earners #19 Hard 21 PostgreSQL CTE top earners #20 Medium 22 PostgreSQL CTE top earners #21 Medium 23 PostgreSQL CTE top earners #22 Hard 24 PostgreSQL CTE top earners #23 Medium 25 PostgreSQL CTE top earners #24 Medium 26 PostgreSQL CTE top earners #25 Hard 27 PostgreSQL CTE top earners #26 Medium 28 PostgreSQL CTE top earners #27 Medium 29 PostgreSQL CTE top earners #28 Hard 30 PostgreSQL CTE top earners #29 Medium 31 PostgreSQL CTE top earners #30 Medium