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777dan777 [17]
2 years ago
8

What is referential integrity

Computers and Technology
1 answer:
Gala2k [10]2 years ago
5 0

The association between tables is referred to as referential integrity. A primary key is required for each table in a database and can appear in other tables as a result of its connection to the data in those other tables. Foreign keys are used when a primary key from one table appears in another table.

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Question 1(Multiple Choice Worth 5 points)
aleksley [76]

Answer:

b

Explanation:

it's not a c or d and now I have to make it 20 characters long so I will do this

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3 years ago
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_____ technology is a broadband technology that can use the wires of a local telephone network.
Alenkasestr [34]
DSL  - DSL stands for Digital Subscriber Line. This technology came after the Dial Up technology for connecting to the Internet. The big disadvantage of Dial-up technology was that when you were talking on the phone, you could not use the Internet and vice-versa. However, although DSL technology used the regular telephone line , it worked on frequencies different from the telephone. So you could use the phone and the Internet at the same time.
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4 years ago
Where would the information needed to start a computer be stored?
ASHA 777 [7]

Answer:

BIOS software is stored on a non-volatile ROM chip on the motherboard. … In modern computer systems, the BIOS contents are stored on a flash memory chip so that the contents can be rewritten without removing the chip from the motherboard.

Explanation:

8 0
3 years ago
The trigonometry book says: sin^2(t) + cos^2(t) = 1 Write a Python program that verifies the formula with the help of the Python
MAXImum [283]

Answer:

If you open your python-3 console and execute the following .py code you will have the following output. (Inputing 20 e.g)

Write the angles in degrees: 20

radian angles is:  0.3490658503988659

cosene( 0.3490658503988659 ) =  0.9396926207859084

sine( 0.3490658503988659 ) =  0.3420201433256687

sin^2( 0.3490658503988659 ) + cos^2( 0.3490658503988659 ) =  1.0

Explanation:

Code

import math

for i in range(1,4):

   angle = int(input('Write the angles in degrees: '))

   #mat library better works with radians

   angle_radians = (angle*math.pi)/180

   #print output

   print('radian angles is: ',angle_radians)

   print('cosene(',angle_radians,') = ',math.cos(angle_radians))

   print('sine(',angle_radians,') = ',math.sin(angle_radians))

   res = (math.sin(angle_radians))**2 + (math.cos(angle_radians))**2

   print('sin^2(',angle_radians,') + cos^2(',angle_radians,') = ',res)

6 0
3 years ago
Business ethics the intranet is a private piece of a company's internet network that is made available to computers and/or vendo
natta225 [31]

Answer:

The answer is "Option A".

Explanation:

In the private sector of communications offers intranets, it is also known as the area of business ethics, that share data within corporations. The purpose of this service is to improve communication, coordination, and data sharing within the organization for employees.

  • It allows you to make a free email account, that runs on a server.  
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8 0
3 years ago
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