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

Give me a histogram for what are the names of the technicians and how many machines are they assigned to repair?, rank names in desc order.
SELECT Name, COUNT(*) FROM repair_assignment AS T1 JOIN technician AS T2 ON T1.technician_id = T2.technician_id GROUP BY T2.Name ORDER BY Name DESC
SELECT "Name", COUNT(*) FROM "repair_assignment" "T1" JOIN "technician" "T2" ON "T1"."technician_id" = "T2"."technician_id" GROUP BY "T2"."Name" ORDER BY "Name" DESC