CREATE TABLE company (company_id DECIMAL, name TEXT, headquarters TEXT, industry TEXT, sales_in_billion DECIMAL, profits_in_billion DECIMAL, assets_in_billion DECIMAL, market_value_in_billion DECIMAL)
CREATE TABLE employment (company_id DECIMAL, people_id DECIMAL, year_working DECIMAL)
CREATE TABLE people (people_id DECIMAL, age DECIMAL, name TEXT, nationality TEXT, graduation_college TEXT)

Show names of companies and that of employees in descending order of number of years working for that employee.
SELECT T3.name, T2.name FROM employment AS T1 JOIN people AS T2 ON T1.people_id = T2.people_id JOIN company AS T3 ON T1.company_id = T3.company_id ORDER BY T1.year_working
SELECT "T3"."name", "T2"."name" FROM "employment" AS "T1" JOIN "people" AS "T2" ON "T1"."people_id" = "T2"."people_id" JOIN "company" AS "T3" ON "T1"."company_id" = "T3"."company_id" ORDER BY "T1"."year_working" NULLS FIRST