1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iris [78.8K]
3 years ago
12

For each entity, select the attribute that could be the unique identifier of each entity.

Computers and Technology
1 answer:
Alika [10]3 years ago
3 0

Answer:

"student ID, number and title" is the correct answer for the above question.

Explanation:

  • The primary key is used to read the data of a table. It can not be duplicated or null for any records.
  • The "student ID" is used to identify the data of the "student" entity. It is because the "student ID" can not be duplicated or null for any records. It is because every student has a unique "student ID".
  • The "number" is used to identify the data of the "Locker" entity. It is because the "number" can not be null or duplicate for any records. It is because every locker has a unique "number".
  • The "title" is used to identify the data of the "Movie" entity. It is because the "title" can not be Null or duplicate for any records. It is because every movie has a unique "title".
You might be interested in
Please tell fast plzzzzzzzz​
NemiM [27]

Answer:

Cyberbullying is the use of digital-communication tools (such as the Internet and cell phones) to make another person feel angry, sad, or scared, usually again and again.

7 0
3 years ago
Read 2 more answers
Which programming language is good for 14 year old like me​
ddd [48]

Answer:

It would be Python code

Explanation:

4 0
3 years ago
Read 2 more answers
The emergence of MP3 (iPod) technology is an example of creative destruction because a. It is less expensive than compact discs
Katen [24]

Answer:

The emergence of MP3 (iPod) technology is an example of creative destruction because it has b. Replaced compact discs as a technology used for the storage and transfer of music.

Explanation:

Creative destruction refers to the process whereby a new technology/product replaces the one before it. The MP3 technology replaced compact discs because people started using MP3 files to transfer and store music since it was less expensive and files could be transferred easily. MP3 files could be transferred over Bluetooth and they required less storage space. Whereas, a compact disc required more space and costed more as well. So, MP3 technology replaced compact discs.

The emergence of MP3 (iPod) technology is an example of creative destruction because it has b. Replaced compact discs as a technology used for the storage and transfer of music.

8 0
3 years ago
To define constructors and member functions outside of a class's original scope, the operator can be used.
Artyom0805 [142]

Answer: Scope resolution operator(::)

Explanation: A member function and the constructor can be called within the function easily but for the execution of the these components outside the class , a special operator is required to call the functions. The scope resolution operator(::) preceding with the name of class is thus used for defining of the function outside class.This operator maintains the cope of the function and constructor outside the class.

8 0
3 years ago
A structure is private by default, but can be declared to be friend or private.
posledela
Structures can be accessed from anywhere within the module or class in which they are declared. A structure is Friend by default. To specify the accessibility in more detail, include Public, Protected, Friend, Protected Friend, or Private in the Structure statement. You must declare every data member of a structure.
4 0
3 years ago
Other questions:
  • Almost all PCs have this type of serial connector
    8·1 answer
  • Which is the largest unit of measurement for computer data?
    14·1 answer
  • All of the following are potential benefits of blogging except
    10·1 answer
  • Is mmorpg an example of virtual community
    5·2 answers
  • A customer seeks to buy a new computer for private use at home. The customer primarily needs the computer to use the Microsoft P
    9·1 answer
  • Tascake Gets Free Brainliest Because he didnt get it<br><br> Tascake Heres Brainliest
    6·2 answers
  • What are the main dimensions of information system and their components
    13·1 answer
  • I need this answered
    10·1 answer
  • When you run your Windows Form application, what is the lifespan of a global variable (also known as a "field" or "class" variab
    13·1 answer
  • What’s unique about New Cashierless stores?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!