CREATE TABLE photos (id NUMBER, camera_lens_id NUMBER, mountain_id NUMBER, color CLOB, name CLOB)
CREATE TABLE camera_lens (id NUMBER, brand CLOB, name CLOB, focal_length_mm FLOAT, max_aperture FLOAT)
CREATE TABLE mountain (id NUMBER, name CLOB, Height FLOAT, Prominence FLOAT, Range CLOB, Country CLOB)

Count the brand of each camera lens with a pie chart.
SELECT brand, COUNT(brand) FROM camera_lens GROUP BY brand
SELECT "brand", COUNT("brand") FROM "camera_lens" GROUP BY "brand"