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2 years ago

What is the purpose of creating a primary key in a database

Computers and Technology

1 answer:

ss7ja [257]2 years ago

7 0

Answer:

Basically it creates a unique identifier for each row in your table and that can help you link your table to other tables using primary key as link

Explanation:

"Primary key allows you to create a unique identifier for each row in your table. It is important because it helps you link your table to other tables (relationships) using primary key as links."

You might be interested in

WAp to input the radius and print<br> the area of circle

Sergeu [11.5K]

Program:-

$\tt r=float(input("Enter\:the\:value\:for\:radius\:of\:circle"))$

$\tt x=3.14*\:r**2$

$\tt print("Area\:of\:Circle=\{x\}")$

<h3>Sample run:-</h3>

$\tt r=3$

$\tt Area\:of\:the\:circle=28.26$

7 0

1 year ago

.Although SQL is a language, you don’t use it to write applications? (true, false)

Olin [163]

Answer:

The correct answer for the given question is true .

Explanation:

SQL is an Structural query language that is used for accessing the database basically it is an query language which is used for communicating with database by executed the query .

The following are the function of SQL

SQL can insert the data into database

it can update the record into database

SQL can retrived the database.

We do not use SQL for writing application it is only used to accessing the database

For create application we can use programming language Like PHP,ASP,JAVA ,PYTHON.etc.

3 0

2 years ago

can someone help me write a 5 paragraph essay on microsoft word and why we need and how we use it? if you can please make it sou

DaniilM [7]

Here are some important points:
- we use it to do essays for school
- we can use it to do flyers for recreational events
- we can use it to do pamphlets to inform people
- it is versatile, so you can create many different types of documents
- you can create charts

This can be your opening statement

Today, there is a lot asked of a child in school. From charts to essay to projects, the average kid has at least 10 different programs they use just for one project. But there is one program that came along and changed everything, and that program is called Microsoft word. Microsoft word is valuable because it is versatile (what I wrote earlier about it being able to do many different tasks), it simplifies your experience (what i said about it being able to combine different programs into one), and it is free (you can write about how some programs charge to use their high-grade programs but microsoft is free and avaialabe on every windows
computer.)

GOOD LUCK !

4 0

2 years ago

A marketing firm has been hired to help a client understand how their online brand is perceived. The firm has set up a system to

KiRa [710]

Answer:

Automated Reasoning

Explanation:

Automated reasoning is a type of Natural language understanding(NLP) in computer science that makes logical inferences based on information or data previously gathered. Automated reasoning allows computers make intelligent decisions and reason logically based on data gathered. For example, a system is based to scan online reviews and conclude on the ones that are negative reactions based on previous data.

3 0

2 years ago

Will somebody please explain to me HTML?

larisa86 [58]

Answer:

Hypertext Markup Language (is also known as html) is the standard markup language for creating web pages and web applications.

3 0

2 years ago