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CREATE TABLE people ( id int, seniority_level varchar(255), salary int ); INSERT INTO people values(20, 'senior', 10000); INSERT INTO people values(30, 'senior', 15000); INSERT INTO people values(40, 'senior', 30000);
CREATE TABLE
INSERT 0 1
INSERT 0 1
INSERT 0 1
with total_cost AS ( SELECT id, seniority_level, salary, SUM(salary) over (partition by seniority_level order by id ASC) as cost FROM people ), senior_can_hire AS ( SELECT id, seniority_level, salary FROM total_cost WHERE seniority_level = 'senior' AND cost <=40000 ), junior_can_hire AS ( SELECT id, seniority_level, salary FROM total_cost WHERE seniority_level = 'junior' AND cost <= 40000 - (SELECT SUM(salary) FROM senior_can_hire) ) SELECT (SELECT count(*) FROM senior_can_hire) senior, (SELECT count(*) FROM junior_can_hire) junior
senior
junior
2
0
SELECT 1