CREATE TABLE flight (flno DECIMAL, origin TEXT, destination TEXT, distance DECIMAL, departure_date TIME, arrival_date TIME, price DECIMAL, aid DECIMAL)
CREATE TABLE certificate (eid DECIMAL, aid DECIMAL)
CREATE TABLE employee (eid DECIMAL, name TEXT, salary DECIMAL)
CREATE TABLE aircraft (aid DECIMAL, name TEXT, distance DECIMAL)

Show name and salary for all employees sorted by salary.
SELECT name, salary FROM employee ORDER BY salary
SELECT "name", "salary" FROM "employee" ORDER BY "salary" NULLS FIRST