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MrRissso [65]
3 years ago
9

The relational database is the primary method for organizing and maintaining data today in information systems. It organizes dat

a in two-dimensional tables with rows and columns called relations. In a database, __________ is used to uniquely identify each record for retrieval or manipulation.
Computers and Technology
1 answer:
levacccp [35]3 years ago
5 0

Answer:

A key field is used to uniquely identify each record for retrieval or manipulation.

Explanation:

In a database there are many, having similar entities. So in order to differentiate each entity from other we need to set a key field among all the field which is always unique for each entity.

For example:

In a database of a company having data about its employees, the key field might be their ID. As some employees can have same names, addresses, phone numbers but cannot have the same ID.

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When giving a presentation it is better to ___________
Romashka-Z-Leto [24]
<span>C) Always better to give your information and end on time.</span>
6 0
3 years ago
Write a C++ function for the following:
Nana76 [90]

Solution :

class Account

$ \{ $

public:

$\text{Account}()$;

double $\text{getBalance}$();

void $\text{setBalance}$();

$\text{bool withdraw}$(double bal);

$\text{private}:$

double $\text{balance}$;

}:

$\text{Account}()$ {}

double $\text{getBalance}$()

$ \{ $

$\text{return balance}$;

}

void $\text{setBalance}$(double $\text{balance}$)

$ \{ $

this.$\text{balance}$ = $\text{balance}$;

}

$\text{boolean}$ withdraw($\text{double bal}$)

$ \{ $

if($\text{balance}$ >= bal)

$ \{ $

$\text{balance}$ = $\text{balance}$ - bal;

$\text{return}$ true;

}

$\text{return}$ false;

}

}

4 0
3 years ago
Kevin would like to ensure that his software runs on a platform that is able to expand and contract as needs change. Which one o
Reil [10]

A terminology which best describe Kevin's goal in terms of expansion and contraction as needs change is: A. Scalability.

<h3>What is scalability?</h3>

Scalability can be defined as a measure of the ability of a system to change (expansion or contraction) in performance and cost as a result of changes in demands of application and system processing, especially in a network architecture.

In this context, we can logically deduce that a terminology which best describe Kevin's goal in terms of expansion and contraction as needs change is scalability.

Read more on scalability here: brainly.com/question/14301721

#SPJ1

Complete Question:

Kevin would like to ensure that his software runs on a platform that is able to expand and contract as needs change.  Which one of the following terms best describes his goal? A. Scalability B. Elasticity C. Cost effectiveness D. Agility

8 0
2 years ago
___________ is a mass-produced, copyrighted software that meets the needs of a wide variety of users, not just a single user or
GaryK [48]

Answer: Package software

Explanation:

Packaged software is the software that contains the functions and programs that are similar in the nature and features.

It is designed in such a way so that it can attract the customers and user by providing the benefit of the selling of the collection of programs rather than buying individual software programs which costs higher.

Thus, it produced at a large scale as well as bought by numerous users.

4 0
4 years ago
What key is used to create spaces between lines within a document?
Naily [24]

I guess the correct answer is the Enter key

Οn cοmputеr kеybοards, thе еntеr kеy in mοst casеs causеs a cοmmand linе, windοw fοrm, οr dialοg bοx tο οpеratе its dеfault functiοn. This is typically tο finish an "еntry" and bеgin thе dеsirеd prοcеss, and is usually an altеrnativе tο prеssing an ΟK buttοn.

4 0
4 years ago
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