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Salsk061 [2.6K]
4 years ago
13

What is a primary key? In computer bussiness

Computers and Technology
1 answer:
Rainbow [258]4 years ago
3 0
It used in a relation database like SQL as a unique identifier for a table in the database. Example school database has a students table which contains a { student_pk, name, gpa} columns with student_pk/student_id being the primary key that other tables can reference the table by.
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Which is the best response to receiving a threating text from a classmate
Yuri [45]

Answer:

send a threatening text in reply, then block the phone number block the phone number, then contact his phone service provider immediately delete the text, then report the incident to authorities ignore the message, then get a new cell phone number.

Explanation:

5 0
3 years ago
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Choose the output result of the below code.
SIZIF [17.4K]

Answer:

B

Explanation:

When you initialize an instance of FunEvent(tags, year) and assign it to bc. The instance variables in this case are: self.tags = ["g", "ml"] and self.year = 2022. But then you alter tags, which will also change self.tags, since self.tags is a reference to the list you passed in as an argument. This is not the case when you do year=2023 because, first of all, integers are not mutable, and also because even if somehow integers were mutable, you're not changing the object in-place, you're simply changing the where the "variable" is pointing to. So for example if you did tags = ["g", "ml", "bc"] instead of tags.append("bc"), it would also not change the value of the instance variable "tags", because you wouldn't be changing the object in-place. So when you print(bc), the instance variables will be ["g", "ml", "bc"] and 2022. When you try to print an object, it call try to convert it into a string using the __str__  magic method. In this case it will return a string formatted as "Event(tags={self.tags}, year={self.year}) which will output "Event(tags=['g', 'ml', 'bc'], year=2022)" So the correct answer is B

4 0
3 years ago
Printed versions of your presentation that contain the slides and blank lines below are called speakers notes
Vadim26 [7]

No, printed versions of your presentation that contain the slides and blank lines below are not called speakers notes.

Speakers notes are notes that are hidden within a PowerPoint presentation and allowing the speaker to refer back to them during the presentation.

6 0
4 years ago
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Amye is in high school. As part of one of her classes, she had to identify the legality of different situations that involved
adell [148]
I say you should pick answer 1. an HR makes more sense since she is interested in a topic about the legality of different situations that are related to workers and their employers.
8 0
3 years ago
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Long-term memory used by the computer:
Fynjy0 [20]
The long term memory used by the computer is called “RAM”
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3 years ago
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