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harina [27]
3 years ago
10

What is the difference between a key and a superkey?

Computers and Technology
1 answer:
netineya [11]3 years ago
4 0

Answer:

Answered below

Explanation:

A key is a single or combination of many attributes that enable us pull a row of data from a table. Keys are identifiers used to get data seamlessly from the database. A key can be a primary key, secondary key, control key, or super key. A super key is a key or set of attributes use to identify tuples in a database. It can contain extra attributes not necessary for uniquely identifying a database.

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Most software packages have functions for generating _____ about columns of data, which include statistical summaries like contr
GrogVix [38]

Answer:

Descriptives is the correct answer of this question.

Explanation:

Some software packages provide data column definitions that include qualitative summaries such as control averages, mean, average, minimum, standard deviation, number of zero values, number of empty records, etc.

  • A  descriptives summary is a sentence that gives someone information or something.
  • Description is the style of narration creation aimed at making a location, an event, a character or a community vivid.

There are 2 types of Descriptives :-

  1. Narrative type.
  2. Argumentative type.

3 0
3 years ago
What is better for the sd card use as portable storage or use as internal storage?
Sever21 [200]
It depends on what you’d need it for.

> Portable Storage <
- Good for traveling.
- Good for porting stuff from a device to another device.

> Internal Storage <
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5 0
3 years ago
Bank of America sends out customer surveys to all of its customers asking them about the services they offer. What type of resea
ValentinkaMS [17]

Answer:

<u>Market research</u>

Explanation:

<u>Market research:</u> The term "market research" is described as a process of describing the viability of a new product or service via specific research that is being conducted directly with the different potential customers. Therefore, market research allows a specific company to discover or identify the target market and receive opinions and some other feedback from various consumers regarding their interest associated with the service or the product.

<u>In the question above, the given statement represents market research.</u>

4 0
3 years ago
This process can be applied to help workers choose the best telecommunications technology to do a specific task.
Lisa [10]
B. Internet Telephony would be my best guess. I'm not that good with computers. Hope this Helps :-)
4 0
3 years ago
Read 2 more answers
Effective nonverbal communication can cause tension.<br><br> True or False
agasfer [191]

Explanation:

When your nonverbal signals match up with the words you're saying, they increase trust, clarity, and rapport. When they don't, they can generate tension, mistrust, and confusion.

4 0
3 years ago
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