To discover the functional dependencies (FDs) based on the given information about closed sets of attributes, we can follow these steps:
(a) All sets of the four attributes are closed:
In this case, if all sets of attributes are closed, it means that no additional FDs can be inferred from the given information. Without any additional information, we cannot determine any specific FDs.
To discover the functional dependencies (FDs) based on the given information about closed sets of attributes, we can follow these steps:
(a) All sets of the four attributes are closed:
In this case, if all sets of attributes are closed, it means that no additional FDs can be inferred from the given information. Without any additional information, we cannot determine any specific FDs.
If this answer is correct? why?