77
So`rov:
select * from mahsulot UNION select * from guruhi
Birlashtirish operatori- UNION , operator 2 yoki unidan ortik SQL surovlar
chikaradigan natijalarni yagona satr va ustunlar tuplamiga birlashtiradi.
So`rov:
select * from mahsulot INTERSECT select * from guruhi
So`rov:
select * from mahsulot MINUS select * from guruhi
Do'stlaringiz bilan baham: