CREATE TABLE person (name TEXT, age DECIMAL, city TEXT, gender TEXT, job TEXT)
CREATE TABLE personfriend (name TEXT, friend TEXT, year DECIMAL)

What is the age of the doctor named Zach?
SELECT age FROM person WHERE job = 'doctor' AND name = 'Zach'
SELECT "age" FROM "person" WHERE "job" = 'doctor' AND "name" = 'Zach'