Computer Science, asked by Anonymous, 3 months ago

Plz don't give inrrelvent answers

Anwer only Q13,15,17 .... Plz

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Answered by Anonymous

4

Answer:

DI 13 WàlE KA YE ANSWER HE = The cañdidate kéys are all the kéys that COULD be the prímary kéy. All the keys that are uníque and can be differéntiated upon in the table. The super kéy is a prímary key with additional attríbutes, this extra infórmation is used to uníquely idéntify an instánce of the eñtity set.

SQL=Structured Query Language

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