Malumotlar bazasi
c) 5
d) 2
#37======================================================
Relyatsion malumotlar bazasi nechta parametrlar bilan baholanadi
a) 5
b) 6
c) 4
d) 7
#38=====================================================
SELECT tovar_turi,SUM(soni)FROM Tovar_in GROUP BY tovar_turi
a) Olib kelingan tavarlarning o’rtacha soni
b) Har bir olib kelingan Tovar sonini tovar_turi kesimida
c) Eng kop olib kelingan tovarlarni
d) Olib kelingan tovarlarning umumiy sonini
#39====================================================
Jadvallarni birlashtirish operatorini korsating
a) UNION
b) INTERSECT
c) EXSEPT
d) MINUS
