... lamotcong'cuh6tr« khai thacthong tintir cacCSDL 16'n t1-0ra cacbaocaod9ng voisutro: giupciiacac cau l~nh SQL. Bal bao nay gio'i thieu met so khai niern CO"ban va each khai thac ... phiihopvoi nhu cau khai thaccua cacdoituong suodung.Trong qua trlnh nghien CUll, nhom ph at tri€nirngdung dil khai th ac tri~t d€ cong Cl,lva apdung thu nghiem VaG viec khai th ac duo li~u ... c6 mi?t FT luu tru' tat d cac chieu cling khai thac m9t Iuc. Tuy thu9C va.o nhu cau khai tHc thong tin ma. t5 chu'c mo hlnh du' Ii~u khai tHc, t<:tora cac b<l.ngt<:tmde'...