Four actions that can be implemented on a database to autocorrect violations of referential integrity, and the outcomes of the actions are listed below. Match the violation with the corrective action Instructions: Choose your responses from the drop-down menus below. Response options cannot be used more than once.
a. Sets invalid foreign keys to a default primary key value, specified in SQL
b. Propagates primary key changes to foreign keys
c. Rejects an insert, update, or delete
d. Sets invalid foreign keys to NULL
1. Restrict
2. Set Null
3. Set Default
4. Cascade

Answers

Answer 1

Answer:

Follows are the matching to this question:

[tex]Option \ a \to \ Option \ 3\\\\Option \ b \to \ Option \ 4\\\\Option \ c \to \ Option \ 1\\\\Option \ d \to \ Option \ 2\\[/tex]

Explanation:

While time-consuming or prone to errors mechanical adjustments to both the referential, databases could be configured with four measures to engine violations. The restricted action causes the insert, update, and removes to only be denied. Set Null to NULL sets the invalid external key, whereas Set Default to a specific core consideration specified in SQL sets a default foreign key. Its Cascade operation spreads the main changes in external keys.


Related Questions

Use the function random.randint to write a program that rolls a 6-sided die 100 times, and prints out all of the rolls.

Print each roll on its own line.

Answers

import random

for x in range(100):

   print(random.randint(1,6))

I wrote my code in python 3.8. I hope this helps.

Samuel was hired to create a program that asks the user questions and, based on the answers, recommend a book to read. What kind of program should Samuel create? O A. sequential OB. iterative O C. selection OD. syntax​

Answers

Answer:

I think the answer is C

Explanation:

Selection

Answer:

c selection

Explanation:

Because after a series of questions, the code or program will create a selection of what book to recomend

Write a python program that asks the user for two numbers. Using a for loop, add all of the numbers from the first to the second.

For example if the first number is 6 and the second number is 8 the result is 21 (6 + 7 + 8).

Print out the results when you are finished.

Answers

I included my code in the picture below.

Of the following choices, which one is a type of firewall actively maintaining awareness of the status conversations between internal and external hosts? Explain.
A) Stateful Firewall.
B) Non-Passive Firewall.
C) Active State Firewall.
D) Stateless Firewall.
E) None of the above

Answers

Answer:

A) Stateful Firewall.

Explanation:

A stateful firewall actively inspects the conditions and integrity of active connections. It is always in an active and standby mode to holistically evaluate the conditions of active network conditions.

Network traffics that pass their evaluation can have access to the protected network whereas traffics that do not pass their evaluation are blocked. A disadvantage of this firewall is that it can slow the activity of the local network because of all the monitoring it has to perform.

Answer:

The correct answer is A)

Explanation:

A firewall in the computer science parlance refers to a program that is designed specifically to monitor the inflow and outflow of connectivity traffic. By a predetermined set of rules, it is able to block unwanted connections, suspicious and or malicious connections thus preventing the computer from external attack.

As indicated in the question, there are various types of firewalls.

A Stateful Firewall is one that checks the complete state of network connections. This includes all communication between all incoming connections and internal protocol. So all incoming traffic is first screened and if they demonstrate any semblance of a malicious program or traffic, they are terminated at source.

Cheers

Hajar needs to copy files on a Linux system. What command can she use to create a new copy of a file in a different location while preserving the original file

Answers

Answer:

cp command

Explanation:

When copying files and directories under a Linux operating systems, we usually make use of the cp command . In Linux, this cp command is the one that is entered in a shell to copy a file from one location to another, and also possibly on another different file system.

Situation No. 1. Joey is about
to start working on his
experiment about plant cell
using a compound
microscope. He noticed that
one of the objective lens is
missing and the course
adjustment knob is not
working. The eyepiece lens is
also broken. *​

Answers

Answer:

Explanation:

From the above explanation;

The main purpose of the objective lenses is to bring together the light from the specimen and then makes it appear larger by projecting it in the body tube.

Also, the coarse adjustment knob which can be found at the arm of the microscope is usually being used to transport the specimen into focus.

The eyepiece is an opening where the viewer perceives or observe the specimen. It comprises of 10X or 15X power lens.

So; since one of the objective lenses is missing, the coarse adjustment knob not working and the eyepiece lens is also broken. It is advisable to switch to the low power of about 10X and use a fine adjustment knob for the image focus.

explain the digitization process​

Answers

Answer:

Digitization is the process of converting information into a digital (i.e. computer-readable) format. The result is the representation of an object, image, sound, document or signal (usually an analog signal) by generating a series of numbers that describe a discrete set of points or samples

Explanation:

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