CREATE TABLE screen_mode (graphics_mode NUMBER, char_cells CLOB, pixels CLOB, hardware_colours NUMBER, used_kb NUMBER, map CLOB, type CLOB)
CREATE TABLE chip_model (model_name CLOB, launch_year NUMBER, ram_mib NUMBER, rom_mib NUMBER, slots CLOB, wifi CLOB, bluetooth CLOB)
CREATE TABLE phone (company_name CLOB, hardware_model_name CLOB, accreditation_type CLOB, accreditation_level CLOB, date CLOB, chip_model CLOB, screen_mode CLOB)

What is maximum and minimum RAM size of phone produced by company named 'Nokia Corporation'?
SELECT MAX(T1.ram_mib), MIN(T1.ram_mib) FROM chip_model AS T1 JOIN phone AS T2 ON T1.model_name = T2.chip_model WHERE T2.company_name = "Nokia Corporation"
SELECT MAX("T1"."ram_mib"), MIN("T1"."ram_mib") FROM "chip_model" "T1" JOIN "phone" "T2" ON "Nokia Corporation" = "T2"."company_name" AND "T1"."model_name" = "T2"."chip_model"