shop.sql

shop sales computer, write asp.net code c#

--Cau truy van lay ra ten cpu cung voi so luong cu the cac loai laptop co id_cpu tuong ung
select cpu.id_cpu,cpu.ten_cpu,count(sanpham.id_cpu) as sl
from cpu left outer join sanpham 
on sanpham.id_cpu=cpu.id_cpu 
group by cpu.id_cpu,sanpham.id_cpu ,cpu.ten_cpu

select hangsx.id_hangsx,hangsx.ten_hangsx,count(sanpham.id_hangsx) as sl
from hangsx left outer join sanpham 
on sanpham.id_hangsx=hangsx.id_hangsx
group by hangsx.id_hangsx,sanpham.id_hangsx ,hangsx.ten_hangsx

select nhomsp.id_nhomsp,nhomsp.ten_nhomsp,count(sanpham.id_nhomsp) as sl
from nhomsp left outer join sanpham 
on sanpham.id_nhomsp=nhomsp.id_nhomsp
group by nhomsp.id_nhomsp,sanpham.id_nhomsp ,nhomsp.ten_nhomsp