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3 years ago

A __________ is the column of data in a database that is used as the basis for arranging data.

2 answers:

8 0

The answer is sort key. A Sort Key is the column of data in a database that is used as the basis for arranging data. Iy is also used for rearranging data in the column. An Operational Database is used to collect, modify, and maintain data on a daily basis.

AnnyKZ [126]3 years ago

7 0

Answer:

Sort key is the correct answer for the above question.

Explanation:

To arrange the data in a database, a user needs to make some filter for the database. This filter is used to sort the data on behalf of some attributes. The sort is a technique in which the data is arranged in synchronously which can be ascending or descending order. The ascending order presents the data in which approach from small index data to large index data and the descending order approach the data from large index to the small index.

The above question asked about the column key through which data of a database can be arranged. So the answer is the sort key because, Sort is a key of operational data that is used to arrange the operation database in the ascending or descending order.

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In a multiprogramming and time-sharing environment, several users share the system simultaneously. This situation can result in

kap26 [50]

<u>Explanation:</u>

One user can read the private data of another user-privacy.

One user can prevent another user from getting anything done-denial of service.

Indeed, in any multiprogramming and time-sharing environment since the computers of users are networked together, then it is very possible for a bad actor to read the private data of another user, or even prevent another user from accessing their computer by employing a denial of service attack on the network. In other words, the network would be unable to handle the request of users since has been overloaded by another user.

b. a. Yes - if we can ensure that the operating system prevents any sharing of data between users, either for reading or writing and fairly shares the computer, then we can achieve the same level of security.

7 0

3 years ago

What types of information are commonly included in headers and footers? Check all that apply.

polet [3.4K]

Date
Page number
File path and file name

3 0

3 years ago

A blood bank maintains two tables - DONOR, with information about people who are willing to donate blood and ACCEPTOR, with info

Kipish [7]

Answer:

The sql query is given below.

Since we need to count of males and females for a particular blood group, we put xxx for the blood group.

SELECT COUNT(SELECT DID FROM DONOR WHERE GENDER LIKE "M%") as Male_Donors,

COUNT(SELECT DID FROM DONOR WHERE GENDER LIKE "F%") as Female_Donors

FROM DONOR

WHERE BG = xxx;

Explanation:

The clauses in the query are as follows.

1. SELECT: all the columns required in the output are put in this clause.

2. FROM JOIN ON: the table(s) from which the above columns are taken are put in this clause.

3. WHERE: any condition required to filter the output is put in this clause.

The query is explained below.

1. Find the number of male donors. Number of anything can be found using COUNT() function. A query is required since gender is included in deciding the type of donor.

2. The query is defined to find number of male donors as follows.

COUNT( SELECT DID FROM DONOR WHERE GENDER LIKE "M%"; )

3. In the previous query, LIKE operator is used since it is not defined what value is stored for male donors.

4. Similarly, the query to find the number of female donors is formed.

COUNT( SELECT DID FROM DONOR WHERE GENDER LIKE "F%"; )

5. Next, the final query is formed as follows.

SELECT: both COUNT() functions will come here.

FROM: table name

WHERE: specific blood group will be put here

GROUP BY: this clause is optional and is not used in this query.

HAVING: this clause is optional and is not used in this query.

6. The query after putting all clauses is shown below.

SELECT COUNT(SELECT DID FROM DONOR WHERE GENDER LIKE "M%"),

COUNT(SELECT DID FROM DONOR WHERE GENDER LIKE "F%")

FROM DONOR

WHERE BG = xxx;

7. Alias is used in the above query for each column to get the final query.

SELECT COUNT(SELECT DID FROM DONOR WHERE GENDER LIKE "M%") as Male_Donors, COUNT(SELECT DID FROM DONOR WHERE GENDER LIKE "F%") as Female_Donors

FROM DONOR

WHERE BG = xxx;

7 0

3 years ago

You are considering upgrading memory on a laptop. What are three attributes of currently installed memory that HWiNFO can give t

Dennis_Churaev [7]

Answer:

Some of the qualities of the installed memory which HWiNFO can reveal are:

Date of manufacture
Memory type
Speed of memory

Explanation:

HWiNFO is an open-source systems information app/tool which Windows users can utilize as they best wish. It helps to detect information about the make-up of computers especially hardware.

If you used HWiNFO to diagnose the memory, the following information will be called up:

the total size of the memory and its current performance settings
the size of each module, its manufacturer, and model
Date of manufacture
Memory type
Speed of memory
supported burst lengths and module timings,
write recovery time etc.

Cheers

6 0

3 years ago

Which of these can be used as a smartphone with the power of a laptop?

sashaice [31]

I would go with A) Tablet because that's basically a bigger phone and mobile cmp combined, its not D) because that's a synonym for a smartphone and not C) because paper and pencil is not like a smartphone, and not B) because that's like reading online books.

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3 years ago

Read 2 more answers