Bài tập 1: QUẢN LÝ HÀNG HOÁ
SLTON
TENNC
C
DCHI
TENMH
MANC
C
DTHOAI
NCCAP
(0,n)
QUYCACH
CungUng
(1,n)
MATHANG
(1,1)
Loai
(1,n)
LOAIHANG
(1,n)
(1,n)
SOLUONG
SOLUONG
DatHang
TENLH
MALH
MAMH
(1,n)
(0,n)
DVTINH
DONGIA
DONGIA
ChiTietDDH
ChiTietPGH
ChiTietHD
SOLUONG
(1,1)
(1,n)
(1,n)
(1,3)
DDHANG
(1,n)
(1,1)
GiaoHang
HOADON
PGHANG
DTHOAT
SODDH
TONGSL
SOPGH
NGAYGH
NGAYDH
NCCAP (MANCC, TENNCC, DCHI, DTHOAI)
MATHANG (MAMH, TENMH, DVTINH, QCACH, SLTON, MALH)
LOAIHANG (MALH, TENLH)
DDHANG (SODDH, NGAYDH, TONGSL, MANCC)
PGHANG (SOPGH, NGAYGH, SODDH)
HOADON (SOHD, NGAYLAP, TENKH, DCHI, DTHOAI)
CUNGUNG (MANCC, MAMH)
CHITIETDDH (SODDH, MAMH, SOLUONG)
CHITIETPGH (SOPGH, MAMH, SOLUONG, DONGIA)
CHITIETHD (SOHD, MAMH, SOLUONG, DONGIA)
DCHI
SOHD
NGAYLAP
TENKH