human
Schema:
chip_model (Model_name, Launch_year, RAM_MiB, ROM_MiB, Slots, WiFi, Bluetooth)
screen_mode (Graphics_mode, Char_cells, Pixels, Hardware_colours, used_kb, map, Type)
phone (Company_name, Hardware_Model_name, Accreditation_type, Accreditation_level, Date, chip_model, screen_mode)
Please answer with SQL.
assistant
Sure, I understand.
human
How many phones are on the list?
assistant
SELECT COUNT( * ) FROM phone;
human
How many different chip models are there?
assistant
SELECT COUNT( * ) FROM chip_model;
human
How many chip models are not being used in phones with full accreditation?
assistant
SELECT model_name FROM chip_model EXCEPT SELECT chip_model FROM phone WHERE Accreditation_type = "Full" ;