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Compute the closure (F+) for the following set of the functional dependencies defined on R(a,b,c,d), where F - {c→a, ab→d, a→b, d→c}, i.e. what are all of the FDs implied by F (Hint; there's 24 of them).
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
Do the 11.1 11.1 Credit Card Use. Consider the following hypothetical bank data on consumers’ use of credit card credit facilities in Table 11.3. Create a small worksheet in Exce
Rearrange Classes and Operations Sometimes, the similar operation is defined across different classes and can easily be inherited from a familiar ancestor, but more often oper
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
what is 3nf
Project Description: I want to build a card playing Website. The user should be able to 1. Login. 2. Have profile access. 3. Put money into the site. 4. Selects t
What is relational model feature? A relational model feature is much more data independence than some other database models.
create an e-r diagram usuing graphical dipicted software that could theoritically be used in resturant application
How can i turn a conceptual entity relationship diagram into a logical entity relationship diagram? what do i have to do with "mandetory or" and "optional or" relationships?
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