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3 years ago

Define the term unique key and give an example.

1 answer:

5 0

Answer: Unique is used for the prevention of any field or column to have same or identical values in a particular table.It however, does let the null value top enter the table even though stops entry of duplicate values.

Example- In any particular record of shop, the shopkeeper avoids to have a product that is of the same price as to maintain the clarity of the table .

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Kamal plans to offer new, more favorable contracts to business customers who are now receiving a discount and use wireless servi

raketka [301]

Solution :

'AND" operation is a logical operation and is used in logical connective combining two statements and in truth tables.

Using AND operation verifies whether the outcome P and Q is true only when both the P as well as Q are true. If one of the P or Q is not true, then outcome result will be false.

In the context, Kamal wishes to offer a new and more favorable contracts to the business customers who use a wireless services and receive a discount.

Therefore, using the AND operation of the customers as :

Customer Wireless Discount Outcome

A N N FALSE

B Y N FALSE

C N Y FALSE

D Y Y TRUE

8 0

3 years ago

Convert the following four unsigned binary numbers to decimal and show your work:

Ber [7]

Answer:

23 ,21,10,63,13

Explanation:

We have to convert binary to decimal

10111 corresponding decimal number is

$1\times 2^4+0\times 2^3+1\times 2^2+1\times 2^1+1\times 2^0=23$

10101 corresponding decimal number is

$1\times 2^4+0\times 2^3+1\times 2^2+0\times 2^1+1\times 2^0==21$

01010 corresponding decimal number is

$0\times 2^4+1\times 2^3+0\times 2^2+1\times 2^1+0\times 2^0=10$

111111 corresponding decimal number is

$1\times 2^5+1\times 2^4+1\times 2^3+1\times 2^2+1\times 2^1+1\times 2^0=63$

001111 corresponding decimal number is

$0\times 2^5+0\times 2^4+1\times 2^3+1\times 2^2+1\times 2^1+1\times 2^0=13$

7 0

3 years ago

Which element is located on the top left of the Word screen?

victus00 [196]

The <span>element located on the top left of the Word screen is the Quick Access Toolbar. </span>On the quick access toolbar, you can find some of the common functions that you will need to use on a regular basis, it contains commands that are used most often, for example Redo, Undo and Save etc.

7 0

3 years ago

Describe IT infrastructure. What is the role of business intelligence in determining the technology needs of a business?

mixas84 [53]

Explanation:

The term IT infrastructure refer to an enterprise which is basically a collection of various hardware, software, network components, data network and data centers that are being used to do some development, testing related to IT related services. So the major components of IT infrastructure are:

1) Hardware solutions

2) Software Solutions

3) Various Network Component

4) Data Centers

Business Intelligence is basically a technology driven process that is being used analyze various data and the information in more effective and more informed way. The role of business Intelligence is given in following points:

1) Business Intelligence plays a vital role in identifying the technology required for our business.

2) As we knew that Business Intelligence is technology driven, so technology identification is major part that is being done my this process

3) With business Intelligence we chose the best technology required for our business, its help in increasing the profit of the business.

4) We can business Intelligence is the major process that deal with identifying all the technology needs of the business

8 0

3 years ago

Glass, rubber, porcelain, and paper are examples of electrical A. conductors. B. insulators. C. grounds. D. batteries.

irga5000 [103]

B.Insulators I think

7 0

4 years ago

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