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Svetlanka [38]
3 years ago
15

Referential integrity states that:______.

Computers and Technology
1 answer:
densk [106]3 years ago
7 0

Answer:

D. Each foreign key value MUST match a primary key value in another relation or the foreign key value must be null.

Explanation:

In Computer programming, integrity constraints can be defined as a set of standard rules that ensures quality information and database are maintained.

Basically, there are four (4) types of integrity constraints and these are;

1. Key constraints.

2. Domain constraints.

3. Entity integrity constraints.

4. Referential integrity constraints.

Referential integrity states that each foreign key value must match a primary key value in another relation or the foreign key value must be null.

For instance, when a foreign key in Table A points to the primary key of Table B, according to the referential integrity constraints, all the value of the foreign key in Table A must be null or match the primary key in Table B.

<em>Hence, the referential Integrity constraints ensures that the relationship between the data in a table is consistent and valid. </em>

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Answer:

TPM(Trusted Platform Module) is the correct answer to the following question.

Explanation:

Because TPM is the computer chip which protects your system data and store all keys and access of data that is encrypted by these keys. So that's why TPM is that hardware component which is used to contain the encryption keys and that data is not accessible to any other person's whether your hard drive will be lost or stolen by anyone.

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What is the biggest disadvantage of copying a worksheet into another workbook?
san4es73 [151]
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In the software development process, which review studies the software design before it is released for coding?
marta [7]

1. In the software development process, the <u>software requirement</u> review studies the software design before it is released for coding.

2. <u>Audits</u> and walkthroughs are additional types of reviews performed in the software development process.

<h3>What is software development?</h3>

Software development can be defined as a process through which a software application (program) that is used to perform specific tasks on a computer is conceived, designed, developed (programmed), documented, tested and reviewed.

<h3>What is a software review?</h3>

A software review refers to a process that involves the analysis and examination of a software application (program) by a software developer, computers (robots), project personnel, end users, or user representatives for comment or approval on specifications and standards.

<h3>Types of reviews in software design.</h3>

In the software development process, there are three (3) main types of reviews and these include the following:

  • Preliminary design review (PDR)
  • Critical design review (CDR)
  • Software requirements review (SRR)

Furthermore, the additional types of reviews performed in the software development process are:

  1. Inspection
  2. Code review
  3. Technical review
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  5. Audit review

Read more on software development here: brainly.com/question/25760458

8 0
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You are looking at computer ads. One has a processor that is 3.64GHz. What does this mean?
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Explanation:

8 0
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An operating system coordinates the BLANK of a computers operation.
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I believe it is D. The Central Processing Unit (CPU) can manage memory and storage. It also makes sure every program has what it needs to keep it up and running. 
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3 years ago
Read 2 more answers
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