SCHEMA:
CREATE TABLE repair_assignment (technician_ID VARCHAR); CREATE TABLE technician (Name VARCHAR, technician_ID VARCHAR)
USER:
Show names of technicians and the number of machines they are assigned to repair.

QUERY:
SELECT T2.Name, COUNT(*) FROM repair_assignment AS T1 JOIN technician AS T2 ON T1.technician_ID = T2.technician_ID GROUP BY T2.Name