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

Show the id and name of the employee with maximum salary.
SELECT eid, name FROM employee ORDER BY salary DESC LIMIT 1
SELECT "eid", "name" FROM "employee" ORDER BY "salary" DESC NULLS LAST LIMIT 1