CREATE TABLE scientists (ssn VARCHAR, name VARCHAR, SSN VARCHAR); CREATE TABLE projects (code VARCHAR, hours INTEGER); CREATE TABLE assignedto (project VARCHAR, scientist VARCHAR); CREATE TABLE projects (hours INTEGER)
Find the SSN and name of scientists who are assigned to the project with the longest hours.
SELECT T3.ssn, T3.name FROM assignedto AS T1 JOIN projects AS T2 ON T1.project = T2.code JOIN scientists AS T3 ON T1.scientist = T3.SSN WHERE T2.hours = (SELECT MAX(hours) FROM projects)