9. of 40 Let R(A, B, C, D, E) be a relation with the set of FD's: F%3 {D — С, С — D, D —— A, C — А, Е — С, Е — А, Е — В, В —C). Which of the following statements is NOT correct? Select one: O G = {D–...


9.<br>of 40<br>Let R(A, B, C, D, E) be a relation with the set of FD's:<br>F%3 {D — С, С — D, D —— A, C — А, Е — С, Е — А, Е — В, В —C).<br>Which of the following statements is NOT correct?<br>Select one:<br>O G = {D– C, C → D, D → A, E → B, B → C} is a canonical cover (minimal basis) of F.<br>O H= {D– C, C → D, C → A, E –→ B, B → C} is a canonical cover of F.<br>O F is a canonical cover of itself.<br>O Both G and H are canonical covers of F.<br>

Extracted text: 9. of 40 Let R(A, B, C, D, E) be a relation with the set of FD's: F%3 {D — С, С — D, D —— A, C — А, Е — С, Е — А, Е — В, В —C). Which of the following statements is NOT correct? Select one: O G = {D– C, C → D, D → A, E → B, B → C} is a canonical cover (minimal basis) of F. O H= {D– C, C → D, C → A, E –→ B, B → C} is a canonical cover of F. O F is a canonical cover of itself. O Both G and H are canonical covers of F.

Jun 06, 2022
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