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Akimi4 [234]
3 years ago
7

Consider an entity set Person, with attributes social security number (ssn), name, nickname, address, and date of birth(dob). As

sume that the following business rules hold: (1) no two persons have the same ssn; (2) no two persons have he same combination of name, address and dob. Further, assume that all persons have an ssn, a name and a dob, but that some persons might not have a nickname nor an address.
A) List all candidate keys and all their corresponding superkeys for this relation.
B) Write an appropriate create table statement that defines this entity set.
Computers and Technology
1 answer:
lisov135 [29]3 years ago
4 0

Answer:

\pi

Explanation:

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Answer:

Normal Margin is fit on the page. The default margins for Microsoft Word is normal margin.                                      

Explanation:

The paper visual effect give the document’s theme and quality. Margins send visual effects. Making a document right helps you to send the right message to readers. Use a small paper and adding a border.

You can change the page layout that people notice first with size, orientation, and margins.

Page margins make your document readable. Margins make the document more readable, make text look inviting, and given reviewers.

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Margins are of many types

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Normal gives an equal inch to all sides of the page.

Narrow margins give little room to each column.

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1. Name the first PC virus.<br> 2. In which language are viruses written for Microsoft programs?
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Answer:

The first IBM PC virus in the "wild" was a boot sector virus dubbed (c)Brain, created in 1986 by Amjad Farooq Alvi and Basit Farooq Alvi in Lahore, Pakistan, reportedly to deter unauthorized copying of the software they had written. The first virus to specifically target Microsoft Windows, WinVir was discovered in April 1992, two years after the release of Windows 3.0.

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