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Nonamiya [84]
3 years ago
10

Give your definition of a view. Based on the Academic Database, identify and describe a scenario where it would be necessary to

use a view. Your answer should be addressed in 100 to 150 words.
Computers and Technology
1 answer:
il63 [147K]3 years ago
7 0

Answer:

A database view is a searchable object in a database that is defined by a query. Though a view doesn't store data, some refer to a views as “virtual tables,” you can query a view like you can a table. A view can combine data from two or more table, using joins, and also just contain a subset of information.

Explanation:

A database view is a subset of a database that is based on a query that runs on one or more database tables. Database views are saved in the database as named queries and can be used to save complete queries that are frequently used.

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What is metrical task system algorithm?? and can we use that in online shopping project??
jeyben [28]

Answer:

Metrical task system algorithm is the online algorithm that is used for organizing the online problems like k-server issues, paging issues etc.This task system works in the form of metrics to decrease the complete cost  experienced due to processing of the operation and analyzing the competition.

It can be used for the online shopping project for the analyzing the comparison between the performance on basis of online and offline trends and then optimization can take place according to the the results.

7 0
4 years ago
Use the code below to answer the following questions. Note that the catch statements in the code are not implemented, but you wi
anzhelika [568]

Answer:

d) either e1 or e5

Explanation:

Here, the instruction i1 goes ahead in trying to open the given file through an input stream buffer reader. If the given file name is wrong, it will indicate that an e1 file is not found or if any other IO errors due to invalid stream, no disc in drive e5 IO exception will be drawn.

4 0
3 years ago
Question 3 of 10
kvv77 [185]

Answer:

B. Sometimes, seeing a picture of the process is more helpful than  reading about it.

Explanation:

Video tutorials are a form of communication in which the instructions are given through video instructions. The users drive more information from video tutorials than written or audio. The visual and the auditory aids together helps in creating a better impact on the users. The video tutorial is more user friendly and can easily be controlled by the user. This helps in better understanding and analyzing the information.

8 0
3 years ago
Given an array a, declared to contain 34 elements, write an expression that refers to the last element of the array.
Mice21 [21]
If the language is zero indexed:

a[ 33 ]
4 0
3 years ago
15. How many PC’s can be connected to a UPS?
Alex_Xolod [135]

Answer: Depends on the power of the computer /computers and the UPS

Explanation: For someone who had a big connected network of computers and printers we would plug the computer or server into the UPS as well as the monitor and sometimes a printer sometimes the monitor was plugged into the wall

When you get a UPS you must plug it in for a certain time could be hours or even a day.  A USP has a big battery in it and you must charge it (sometimes it comes semi-charged but you must plug it in to strengthen it. )

there are two connector wires that you affix to the battery and you must put a lot of strength into it to make it secure.

So in closing, you can get away with two like a desktop and a laptop.

Read your documentation that comes with the UPS

6 0
2 years ago
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