CREATE TABLE machine (Machine_ID INT, Making_Year INT, Class TEXT, Team TEXT, Machine_series TEXT, value_points FLOAT, quality_rank INT)
CREATE TABLE technician (technician_id FLOAT, Name TEXT, Team TEXT, Starting_Year FLOAT, Age INT)
CREATE TABLE repair_assignment (technician_id INT, repair_ID INT, Machine_ID INT)
CREATE TABLE repair (repair_ID INT, name TEXT, Launch_Date TEXT, Notes TEXT)

A bar chart for what are the number of the names of the technicians by ascending order of age?
SELECT Name, COUNT(Name) FROM technician GROUP BY Name ORDER BY Age
SELECT "Name", COUNT("Name") FROM "technician" GROUP BY "Name" ORDER BY "Age" NULLS FIRST