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2 years ago

Differenciate between foreign key and primary key in database.

Computers and Technology

1 answer:

enot [183]2 years ago

3 0

Answer:

A primary key is utilized to guarantee the information in the particular segment is interesting. A foreign key is a section or gathering of segments in a social data set table that gives a connection between information in two tables. It particularly recognizes a record in the social information base table.

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Coding question. Please help me?

Marizza181 [45]

Answer:

a for a loop

Explanation:

7 0

3 years ago

Assume you have 100 values that are all different, and use equal width discretization with 10 bins.

zepelin [54]

Answer:

a) 10

b) 1

C) 10

D) 1

E) 20

F) 10

Explanation:

a) The largest number of records that could appear in one bin

= 10

B) The smallest number of records that could appear in one bin

= 1

C) The largest number of records that cab appear in one bin

= 10

d) smallest number

= 1

e) With frequency = 20. the largest number of records that could appear in one bin with equal width discretization (10 bins)

= 20

f ) with equal height discretization

= 10

6 0

3 years ago

This is an example of what type of formula?

slamgirl [31]

Answer:

Average

Explanation:

The term 'average' refers to the 'middle' or 'central' point. When used in mathematics, the term refers to a number that is a typical representation of a group of numbers (or data set). Averages can be calculated in different ways - this page covers the mean, median and mode.

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2 years ago

The ________ is a system of interlinked documents on the Internet, or a graphical user interface to the Internet that provides u

RSB [31]

Answer:

World Wide Web (WWW)

Explanation:

Popularly referred to as the Web is an information system that comprises of many interconnected web resources and documents. These documents and web resources possess a certain URL (Uniform Resources Locators) such as https://www.brainly.com/ which makes them accessible over the internet.

The <em>HTTP or Hypertext Transfer Protocol</em> is a channel for transferring the resources of the World wide web among users.

In 1989, the World Wide Web was invented by Tim Berners-Lee. He developed the first web browser in 1990.

The World Wide Web has played a fundamental role in the advancement of the information age as it is greatly used by different people around the world to communicate efficiently.

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3 years ago

6.5 Code Practice

o-na [289]

Answer: tried using stack over flow and GitHub. The have most of the codes for everything

Explanation:

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3 years ago