a foreign key is one or more columns in one relation that also is the primary key in another table. true false
Answers
False.
A foreign key is one or more columns in one relation that refers to the primary key in another table, but it is not itself the primary key in that table.
A foreign key is a type of constraint that is used in a relational database to establish a relationship between two tables. In this relationship, one table will have a foreign key column that references the primary key of another table. The foreign key ensures referential integrity, which means that data cannot be added to the table unless it corresponds to an existing value in the primary key table.
For example, if there are two tables - Customers and Orders - the Orders table could have a foreign key column called CustomerID that references the primary key column in the Customers table. This would ensure that any orders added to the Orders table must have a corresponding customer ID in the Customers table.
Foreign keys are important for maintaining the integrity and consistency of data in a relational database. They help to prevent errors and ensure that the data is accurate and reliable.
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Related Questions
how is computer Science used in entretainment?
Answers
Answer:
video editing
Explanation:
there are many ways
how do i fix a computer cpu because it says its full
Answers
If your computer CPU is showing that it is full, it could mean that your storage space is running low.
To fix this issue, consider these steps:
1. Check Storage: Assess your storage drive (HDD or SSD) to see if it's near capacity. You can do this by opening File Explorer and clicking on "This PC" or "My Computer."
2. Delete Unnecessary Files: Remove any unwanted or unnecessary files, such as temporary files, downloads, and duplicates. You can use the built-in Disk Cleanup tool or manually search and delete files.
3. Uninstall Unused Applications: Uninstall programs and applications you no longer need through the Control Panel or the Settings app.
4. Cloud Storage: Consider moving files to cloud storage services, like G Drive or Dropbox, to free up space on your computer.
5. External Storage: Transfer some files to an external storage device, like a USB flash drive or an external hard drive.
6. Optimize Storage:
Defragment your hard drive (if using an HDD) by using the built-in Disk Defragmenter tool. This process consolidates fragmented files, improving overall performance.
By following these steps, you can efficiently manage your storage drive and fix the "full" issue. Remember, regular maintenance can prevent such issues in the future
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Someone has stolen your information including your name address and social security number this is most likely the work of a?
Answers
Answer: It would most likely be the work of a hacker.
Explanation:
Internet thievery such as stealing your social security number would be the doing of knowledgeable online criminals, most likely hackers.
Pls help! 7th grade pythin fyi
Answers
Answer:
There should be a colon at the end of the if statement, ie:
if x > 100: print("...")
David has created a lot of styles and now his Quick Style Gallery contains styles he no longer uses.
How can he remove the unwanted styles?
Answers
step by step solution
Answer:
C) Right-click the style in the Quick Styles Gallery, and select the Remove from Quick Style Gallery option.
Explanation:
1) Lux Corporation has issued 2,500 shares of common stock and 500 shares of preferred stock for a lump sum of $95,000 cash.Instructions (a) Give the entry for the issuance assuming the par value of the common stock was $8 and the fair value $28, and the par value of the preferred stock was $35 and the fair value $65. (Each valuation is on a per share basis and there are ready markets for each stock.) (b) Give the entry for the issuance assuming the same facts as (a) above except the preferred stock has no ready market and the common stock has a fair value of $30 per share.
Answers
The journal entry for Lux Corporation's issuance of 2,500 shares of common stock and 500 shares of preferred stock, assuming common stock par value of $8 and fair value of $28, and preferred stock par value of $35 and fair value of $65, would be:
Common Stock: $70,000
Paid-in Capital in Excess of Par: $62,500
Preferred Stock: $30,000
In the first step, we determine the total par value of the common stock and the preferred stock by multiplying the number of shares issued by their respective par values. For the common stock, it would be 2,500 shares x $8 = $20,000, and for the preferred stock, it would be 500 shares x $35 = $17,500.In the second step, we calculate the amount of paid-in capital in excess of par for each stock. This is done by subtracting the par value from the fair value of each stock. For the common stock, it would be $28 - $8 = $20 per share, and since 2,500 shares were issued, the total amount would be $20 x 2,500 = $50,000. For the preferred stock, it would be $65 - $35 = $30 per share, and since 500 shares were issued, the total amount would be $30 x 500 = $15,000.Finally, we record the journal entry by debiting the appropriate accounts and crediting the corresponding accounts. The common stock and preferred stock accounts are debited for their respective par values, while the paid-in capital in excess of par accounts are credited for the difference between the fair value and par value of each stock.Learn more about common stock
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Describe, with examples, the way in which a defect in software can cause harm to a person, to the environment, or to a company
Answers
Answer:
Losing jobs. Fire. Destruction of property.
Explanation:
Having a company shut down due to lack of protection and having people testify products unsafe. If software blows up it could cause desturction of property therefore causing the effect of many people losing their jobs.
Write a program that asks the user to enter the name of an input file. If the file does not exist, the program should prompt the user to enter the file name again. If the user types QUIT in any uppercase/lowercase combinations, then the program should exit without any further output.
Answers
Answer:
I can help you with that inbox me
Which of the following is one of the tools in REPL.it that helps prevent syntax errors?
It adds closing quotes and parentheses if you type the opening ones.
It changes your binary input to the decimal system.
It allows you to see the interpreter’s algorithm.
It limits the pixel resolution.
Answers
Answer:
A. It adds closing quotes and parentheses if you type the opening ones.
Explanation:
Answer:
Yes the answer is A got a 100% hope you get a 100% too have a good day:)
Explanation:
what are the differences between online class and offline class?
Answers
online class Direct on and compute
Offline class go to school
o put a web page on the internet and make it accessible through the world wide web, we need to contact a(n
Answers
Answer:
The webpages on the Internet was for example gaming websites because it is accesible through the world wide web, we need to contact an computer administrator :))
How do you manage your online presence? What kind of sites are you most active on, and what steps can you take to manage your image on these sites better?
Answers
Answer:
1. optimize your website to increase your online visibility and other search engines.
2. make your company information clear and prominent.
Though obvious, it's surprising how many businesses neglect to do make it easy to locate their business information. You should show:
company name
location, including city and state
contact information
overview of products and services
operating hours
3. provide useful content in your page
What is the size of BIOS?
Answers
Answer:
The size of BIOS is 32 megabytes
Answer:
32 megabytes
Explanation:
Select the correct text in the n passage.
Pick the correct characteristics that define the matting process.
Matting uses a front or window mat to separate the print fro the glass of the frame and to add an extra border around the photo. It is the
final step in displaying the photo. it provides breathing space around the print and guides the viewer to focus on the Image. also gives › solid
backing to the photo. Matting tends to hold the print In place if it is loose-mounted. it provides a decorative edge to the print and Includes a
mechanism to hang the photo.
Reset
Next
ghts reserved.
Answers
The correct text in the passage that defines the matting process is it provides a decorative edge to the print and includes a mechanism to hang the photo.
What is matting in compositing?The Matting and compositing are known to be some key operations in graphics.
In the matting process, a background element that has arbitrary shape is known to be extracted from a background image.
Hence, The correct text in the passage that defines the matting process is it provides a decorative edge to the print and includes a mechanism to hang the photo.
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What are the advantages and disadvantages of E learning.
Answers
Answer:
E LEARNING.This is the effective teaching and learning by using electronic media.Advantages.Reduce travveling costs and time to and from school.Learner can study whenever they access computer and internet.Self paced learning models.Class works can be schedule around personal and professional work,resulting in flexibility learning.Disadvantages.Student may feel isolated or miss social interractions.Un motivated learners or those with poor study habits may fall behind .Instruxtions may not be available on demand.hope it helps.
Lael is also planning for student groups that the office will be working with in the coming year. She decides to create a PivotTable to better manipulate and filter the student group data. Switch to the Academic Pivot Table worksheet, then create a PivotTable in cell A1 based on the AcademicGroups table. Update the PivotTable as follows so that it matches Final Figure 2:a. Change the PivotTable name to: AcademicPivotTable b. Add the Activities field and the Group Name field (in that order) to the Rows area.c. Add the 2021, 2022, and 2023 fields (in that order) to the Values area. d. Change the display of subtotals to Show all Subtotals at Top of Group. e. Change the report layout to Show in Outline Form. f. Update the Sum of 2021 field in the values area to display the name 2021 Membership with the Number number format with o decimal places. Ug. pdate the Sum of 2022 field in the Values area to display the name 2022 Membership with the Number number format with o decimal places. h. Update the Sum of 2023 field in the values area to display the name 2023 Membership with the Number number format with o decimal places. e. f. g. h.Previous question
Answers
I apologize, but as a text-based AI, I don't have access to specific worksheets or the ability to create PivotTables in spreadsheets.
I can provide guidance on how to create a PivotTable in general, but I can't perform specific actions on a specific worksheet.To create a PivotTable based on the AcademicGroups table and make the requested updates, you can follow these general steps using Microsoft Excel:Open the worksheet containing the AcademicGroups table.Select any cell within the table or the entire table.Go to the "Insert" tab in the Excel ribbon.Click on the "PivotTable" button. This will open the "Create PivotTable" dialog box.In the dialog box, ensure that the range or table reference is correctly selected.Choose the location for the PivotTable (e.g., "New Worksheet" or "Existing Worksheet").Click "OK" to create the PivotTable.Ine PivotTable Field List pane on the right, you will see the field names from the AcademicGroups table.Drag the "Activities"
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Can someone please give me Python test 3 it would help me tremendously
Answers
Question 1: To tell what will happen when an if-statement is false.
Question 2: The = should be ==
elseif should be elif
The else should have a :
Question 3: All algorithms can only do number calculations.
Question 4: and
Question 5: To make a follow-up True/ False decision
Question 6: if (text1 > 15):
Question 7: if (text1 == 78):
Question 8: if (num1 != num2):
Question 9: >=
Question 10: 4
Question 11: 3
Question 18: a < b and a != b
Question 19: !=
Sorry about 12 - 17 and 20 i can't seem to find those questions guessing you wanted edhesive. I dont have an account on it.
4.11 lesson practice
Need help
Answers
Answer:
Computer modeling.
Explanation:
Computational modeling is characterized by the use of computers to represent a real world situation, that is, it is the use of mathematical models to assist in solving problems in multidisciplinary areas essential for the development of science and technology. Through computational modeling it is possible to adjust several study variables and achieve greater probabilities of reaching an effective result more quickly and at a lower cost.
Through this system it is possible to solve complex problems such as scientific research, product development, analysis and predictions about certain phenomena, development of technology applied to health, etc.
Answer:
4 is Monte carlo simulations
Explanation:
I need the other answers too
who loves juice wld as much as i do?
Answers
Answer:
ehhh he was ok
Explanation:
Answer:abc
Explanation:
A data set includes data from 500 random tornadoes. The display from technology available below results from using the tornado lengths (miles) to test the claim that the mean tornado length is greater than 2.2 miles. Use a 0.05 significance level. Identify the null and alternative hypothesis, test statistic, P-value, and state the final conclusion that addresses the original claim. LOADING... Click the icon to view the display from technology. What are the null and alternative hypotheses
Answers
Answer:
The answer is:
\(H_0:\mu=2.2\\H_1:\mu> 2.2\)
Explanation:
\(H_0:\mu=2.2\\H_1:\mu> 2.2\)
The test value of statistic t= \(\frac{\bar x-\mu}{\frac{s}{\sqrt{n}}}\)
\(=\frac{2.31688-2.2}{0.206915}\\\\=0.56\)
The value of P = P(T>0.56)
=1-P(T<0.56)
=1-0.712
=0.288
Since the P value exceeds its mean value (0.288>0.05), the null assumption must not be rejected. Don't ignore H0. This assertion, it mean length of the tornado is greater than 2.2 miles also isn't backed by enough evidence.In a five-choice multiple-choice test, which letter is most often the correct
answer?
A. A
B. B
C. C
D. D
Answers
I believe the answer is C.
I think there was a study done on this a while back!
(1) describe how you generally use your cellphone on a daily basis (including with whom do you communicate for what purpose with what frequency); (2) read the Supplementary Reading (click here: Does the Internet Make You More or Less Connected?), and discuss how YOUR cellphone use make YOU more or less connected.
Answers
Brainly wasn't letting me answer, so here's an attachment of the answer
research on the 5th generation of computers stating the advantages and disavantage how such computers were designed,examples of such computers etc
Answers
The 5th generation of computers, also known as the artificial intelligence (AI) era, was designed to incorporate advanced technologies such as machine learning, natural language processing, and expert systems. These computers were designed to have the ability to learn, reason, and make decisions based on complex data sets.
Advantages of 5th generation computers include:
Improved efficiencyIncreased intelligence: More natural interactionWhat are the 5th generation of computers?The Disadvantages of 5th generation computers include:
High cost: Due to their advanced technologies, 5th generation computers can be quite expensive.Complexity: These computers are often more complex to use and maintain than previous generations of computers, which can be a disadvantage for some users.Therefore, the Examples of 5th generation computers include:
IBM WatsonGo/ogle AssistantAmazon AlexaLearn more about computers from
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what is full form of RAM???
Answers
Answer:
Random Access Memory, it's used to store working data and machine codes
Explanation:
Hope it helped !
Adriel
When you use a BEFORE trigger to work with an UPDATE statement, you can use the ____________ keyword and a column name to refer to a value in the row before it is updated. Group of answer choices OLD NEW PREVIOUS SUBSEQUENT
Answers
When using a BEFORE trigger to work with an UPDATE statement, you can use the OLD keyword and a column name to refer to the value in the row before it is updated.
In this context, the "OLD" keyword represents the original values in the row before any modifications take place. This can be particularly useful when you need to compare or log the changes made during the update process. On the other hand, the "NEW" keyword is used to refer to the updated values in the row after the modifications have been applied.
This allows you to work with both the original and updated values within the trigger, enabling more control and flexibility in your database operations. To summarize, using the "OLD" keyword in a BEFORE trigger with an UPDATE statement allows you to reference the original value of a specific column before it is updated. This is helpful when tracking or comparing changes during the update process, and provides additional control when working with database modifications.
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Why are you more likely to be able to recover a recently deleted file than a file that was deleted a long time ago?.
Answers
If we want to recover a recently deleted file it is easier because the file is still there but the space is marked as able to be written over with new data. The other reasons also when we delete a file, we only the directions to it and don't really remove the data, so that the recently deleted data will more easier to found by the system then the older deleted file.
Data restore generally can be defined as the process of restoring data to its a new location or original location and also copying backup data from secondary storage. To move data to a new location or also return data that has been damaged, lost, stolen to its original condition can be done by data restore.
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what does an "embedded video" mean
Answers
Answer:
simply linking to the video at another location and
Explanation:
What makes AI so powerful
Answers
AI's power lies in its ability to process vast amounts of data, identify patterns, learn from experience, and make intelligent decisions, enabling automation, optimization, and innovation across various industries.
AI is powerful due to several key factors:
Together, these factors make AI a powerful tool with transformative potential across various industries and domains.
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in
python please
Please write a program that prompts the user to enter five integers. The first is the seed for the random number generation. The second and third are the lower and upper bound for the random number. l
Answers
Here is the Python program that prompts the user to enter five integers. The first is the seed for the random number generation. The second and third are the lower and upper bounds for the random number.
def random_numbers(): import random print("This program will generate a series of random numbers.") seed = int(input("Enter a seed for the random number generator: ")) random.seed(seed) lower_bound = int(input("Enter the lower bound for the random numbers: ")) upper_bound = int(input("Enter the upper bound for the random numbers: ")) for i in range(5): print(random.randint(lower_bound, upper_bound))random_numbers()The above program prompts the user to enter five integers.
The first integer is the seed for the random number generation. The second and third integers are the lower and upper bounds for the random numbers. Then, the program generates five random numbers between the lower and upper bounds. Finally, it prints the generated numbers on the console.You can modify the program according to your requirements.
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Windows resource protection could not perform the requested operation.
a. True
b. False
Answers
The correct answer is This statement is true. "Windows resource protection could not perform the requested operation" is an error message that may appear when attempting to run the System File Checker (SFC) tool on a Windows operating system. SFC is a utility built into Windows that scans for and repairs corrupt or missing system files.
When the error message "Windows resource protection could not perform the requested operation" appears, it indicates that the SFC tool was unable to perform its intended task due to a problem with the system files or settings. This error message can have various causes, such as corrupted system files, disk errors, or conflicts with third-party software. To resolve this issue, you may need to run additional troubleshooting steps, such as running a disk check or a virus scan, or repairing the Windows installation using the Deployment Image Servicing and Management (DISM) tool. It is recommended to seek additional assistance from a qualified technician if you are not comfortable performing these advanced troubleshooting steps yourself.
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