-- Barcha kitoblar va ularning mualliflari/hamkor mualliflarini oddiy jadval shaklida chiqarish. -- Misol: -- kitob_nomi | muallif_nomi -- ---------------------|-------------- -- Usta va Margarita | Igor -- Eugen Onegin | Ivan -- Barcha mualliflar va ularning kitoblar sonini chiqarish. -- Misol: -- muallif_nomi | kitob_soni -- --------------|-------------- -- Igor | 2 -- Ivan | 1