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sweet-ann [11.9K]
4 years ago
6

Why are duplicate tuples not allowed in a relation?

Computers and Technology
1 answer:
velikii [3]4 years ago
4 0

Answer:

Explanation:

Duplicate tuples are not allowed in a relation because the specifications of the constraints of the regional integrity are violated, especially the main constraint that states that there can be no identical values for the attributes of two tuples at any database relation state.

Also, duplicate tuples are not allowed in a relation due to the fact that they lead to redundancy of the data base which in turn, slowing down the speed of the database when data processing such as inserting, querying, updating, deleting, etc are being performed.

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A computer that supports LoJack technology must have two main components installed. It needs an Application Agent (residing in t
olga_2 [115]

Answer: Computer's BIOS

Explanation:

Following the information given in the question, the highest level of security that is offered by LoJack can be achieved when Persistence Module resides in the computer's BIOS.

The BIOS (basic input/output system) refers to the program which the microprocessor of a computer uses in starting the computer system when the computer is powered on. It should also be noted that the BIOS is used in managing the data flow that exist between the operating system of the computer and the attached devices like the keyboard, hard disk, mouse, etc.

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3 years ago
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zloy xaker [14]

Answer:

EXAMPLE -

Create a variable and assign your age

var myage = 32;

type your age:

console.log(my age) ;

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This makes the scrip more portable which means that the result on the screen is independent of the code console.log(myAge); . If we need to change our age all we have to do is to assign another number to the variable myAge and the output will change automatically. That’s the purpose of a variable.

5 0
3 years ago
Intellectual property piracy has gotten a small boost from the increasing availability of counterfeit goods through Internet cha
Aliun [14]

Answer:

The answer is "Option B".

Explanation:

Intellectual property is protected by law in which property, copyright, and trademarks, are uses, that enable you to gain individuals' popularity or personally benefit according to what they create.

  • It is a program that helps to create an environment, in which imagination and technology are used.
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3 0
3 years ago
Sites like Zillow get input about house prices from a database and provide nice summaries for readers. Write a program with two
qaws [65]

Answer:

Se explaination

Explanation:

/Declaring variables

integer currentPrice

integer lastMonthPrice

integer changeLastMonth

float mortagage

//Reading input

currentPrice = Get next input

lastMonthPrice = Get next input

//Calculating price change

changeLastMonth = currentPrice - lastMonthPrice

//Calculating mortagage

mortagage = (currentPrice * 0.051) / 12

//Printing output

Put "This house is $" to output

Put currentPrice to output

Put "\nThe change is $" to output

Put changeLastMonth to output

Put " since last month." to output

Put "\nThe estimated monthly mortgage is $" to output

Put mortagage to output

3 0
3 years ago
What steps will add content to a report header section?
devlian [24]

Answer: 1. Design 2. Section divider or blank area 3. Controls 4. Property sheet

Explanation:

Edge2020

5 0
3 years ago
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