nguyenphuc1582004 nguyenphuc1582004
  • 15-05-2023
  • Computers and Technology
contestada

Câu 2 (6 điểm). Cho lược đồ quan hệ R- (U,F) với
U= {ABCDEGH} và tập phụ thuộc hàm
F= {CDH, EB, DG, BHE,CHDG, CA}
Hãy tìm tất cả các khóa của lược đồ.

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