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
Kryger [21]
3 years ago
9

When would you use a composite primary key? Group of answer choices

Computers and Technology
2 answers:
taurus [48]3 years ago
8 0

Answer:

d. A many-to-many relationship

Explanation:

A composite primary key is the key that uses two or more attributes to uniquely identify any row in a table. These are usually used in associative entity table in which many to many relationship between 2 or more other table exists.

Example:

Suppose we have a table which consists of 4 columns:

student_ID, subject_ID, subject_name and marks.

Here the student_ID and subject_ID can be combined together to form the composite primary key.

vichka [17]3 years ago
6 0

Answer:

A. Multi-field attributes

B. A ternary relationship

C. A unary relationship

You might be interested in
Kelly is a college sophomore majoring in computer science. She is interested in gaining exposure to the most useful and current
Nuetrik [128]

Answer:

Java

Explanation:

Java is a general-purpose programming language that is object-oriented, and has strong support for web development.

Therefore, one of the languages that a college sophomore majoring computer science learn is <u>Java,</u> an object-oriented programming language that is commonly used to write Web applications.

6 0
3 years ago
What should students hope to get out of classroom discussions? Check all that apply.
Dafna11 [192]

Answer:

The answer is A,C,E,F

Explanation:

3 0
3 years ago
Read 2 more answers
The Leal button is located in the
Fed [463]
The button is located on the left side of the gear shift right under the main shift button
7 0
3 years ago
How does math help you determine the amount of watts a turbine produces?
vlada-n [284]
It helps you determine the amount of watts a turbine produces because math is the only way to go
7 0
3 years ago
A _______ is a hierarchical list of folders that shows the arrangement of data stored on a windows computer.
olasank [31]

A directory tree is a hierarchy of directories that consists of a single directory, called the parent directory or top level directory, and all levels of its subdirectories (i.e., directories within it).

For more information :)
http://www.linfo.org/directory_tree.html
4 0
3 years ago
Other questions:
  • Frank is a writer. He needs to work for long hours and type for long periods on the computer. What injury can Frank develop?
    15·2 answers
  • A network protocol is a set of rules defining communication between two devices. True False
    8·2 answers
  • Colin Mackay Inc., a software company with its head office in Amsterdam, has employees across three continents. The company's pr
    10·1 answer
  • What is the function of the capsid? it allows a virus to live independently. it is composed of genetic material. it destroys the
    12·2 answers
  • Pls help me<br> first one to answer correctly gets brainly points
    6·2 answers
  • The illustration shows different types of text language.
    5·2 answers
  • If 209g of ethanol are used up in a combustion process, calculator the volume of oxygen used for the combustion at stp​
    5·1 answer
  • A. All methods in an interface must be _________________ _________________________.
    5·1 answer
  • How does the sky change as onegets above Earth’s atmosphere?
    5·1 answer
  • PlanthelogicforLungi’sapplicationusingpseudocode.Thelogicneedstosatisfythefollowingneeds:TheapplicationwillneedtoallowLungitoen
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!