databasa yaratish va nomini ózgartirish

bog'lash 2 ta table ni

😐Columbga default qo'shish !😐Yangi columb qo'shish tablga va constraint qo'shish 😐constrantni o'chirish

check constraint qo'shish va o'chirish

identity ga misol

Identity columb yaratish

Select DISTINCT Name, city from tblperson
tanlangan kolubdagilarni takrorlanmaydigan qatorlarini chiqarish

select bilan ishlatiladigan operatorlar