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irina1246 [14]
4 years ago
5

When using query by example (qbe) in the data manipulation component of a database management system (dbms), the _____ is used w

hen all the conditions in the qbe form must be met?
Computers and Technology
1 answer:
Whitepunk [10]4 years ago
6 0

I guess the correct answer is AND operator

Thе AND οpеratοr is a Bοοlеan οpеratοr usеd tο pеrfοrm a lοgical cοnjunctiοn οn twο еxprеssiοns. AND οpеratοr rеturns a valuе οf TRUЕ if bοth its οpеrands arе TRUЕ, and FALSЕ οthеrwisе.

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Need answers for 11&12. Due today. Thanks.
GalinKa [24]
What is CAD?

Computer-aided design (CAD) is the use of computer programs or computer systems that aim to create, modify, analyze, optimize and document two or three-dimensional (that is 2D or 3D) graphical representations of physical objects as an alternative to manual drafts and product prototypes. It is widely used in electrical, mechanical, chemical engineering, among others. For example, it is used in electrical engineering to make electrical drawings regarding different projects such as Residential Projects, industrial projects, etc.

What are some of its advantages over other design systems?

CAD is widely used to increase the productivity of the designer as well as improve the quality of design, improve communications through documentation, and to create a database for manufacturing. 
It is used throughout the engineering process. From conceptual product design and layout through assembly analysis to manufacturing method definition. The method  CAD enables and ensures engineers to interactively test design variants with minimal physical prototypes to achieve: 

1. Lower product development costs
2. Greater speed
3. Increased productivity
4. Quality assurance 
5. Accelerated time-to-market

In this technological age, costs, productivity, speed, quality and time are topics very important to companies. These topics are optimized using CAD. Manual drafts and product prototypes translate into a poor productivity nowadays.

What is the difference between servicing and repair?

There are a lot of products that are designed to be fully serviceable and repairable. These products (such as a watch, smartphone, car, etc) are subjected to a wide variety of daily stresses and strains. When a part of the product needs replacing, this is a timely opportunity to ensure that any progressive wear and tear from external elements are addressed. By carefully assessing each product, checking its parts, addressing any worn parts or gaskets, ensures that the product is in perfect working order and that it always functions efficiently. This is related to service.
On the other hand,  if the product has been accidentally damaged, suffered a fault, then it is necessary to repair the product. This is related to repair
So, the difference between servicing and repair is that the first one is related to maintenance and the second one involves fixing things when the product is damaged.

Why are both important in technological products?

Creating the most popular product of the year will make consumers and investors happy. Many of the best-selling products were first in a new category. The purpose of the products is to continue to dominate their markets. So, it is important that they be easy for maintenance and hard to be damaged.
3 0
4 years ago
An example of hardware is a _____. a)word processor b)database c)motherboard d)internet
zubka84 [21]
Salutations!

<span>An example of hardware is a __________.

</span><span>An example of hardware is a motherboard. Hardware are physical feature of a computer that you can touch and see. The rest of the options listed are all software --- 

Software are list of commands listed by the computer, they are also features of computer, but you can't physically touch them.

Thus, your answer is option C.

Hope I helped :D</span>
5 0
3 years ago
Read 2 more answers
A ________ describes the data and relationships that will be stored in a database.
nevsk [136]
Your missing word is Data model.
8 0
3 years ago
Text that is positioned at the top of a column and labels the<br> column.
Vanyuwa [196]

Answer:

column header

Explanation:

3 0
3 years ago
Computers represent color by combining the sub-colors red, green, and blue (rgb). Each sub-color's value can range from 0 to 255
Effectus [21]

Answer:

<em>The programming language is not stated; However, I'll answer the question using C++ programming language, </em>

<em>This program uses comments for explanations  </em>

<em>Program starts here</em>

#include<iostream>

using namespace std;

int main()

{

//Declare Array

int colorcode[3],graycode[3];

//Prompt user for color code

cout<<"Enter Color Code (One on a line)"<<endl<<"Inout Range is 0 to 255"<<endl;

for(int i = 0;i<3;i++)

{

 ccode:  

 cout<<"Enter Color Code "<<i+1<<": ";

 cin>>colorcode[i];

 if(colorcode[i]<0 || colorcode[i]>255)

 {

  cout<<"Input Range is 0 to 255"<<'\n';

  goto ccode;

 }

}

//Initialize smallest to colorcode[0]

int smallest = colorcode[0];

//Determine smallest

for(int i = 0;i<3;i++)

{

 if(colorcode[i]<smallest)

 {

  smallest = colorcode[i];

 }

}

//Determine Graycode

for(int i = 0;i<3;i++)

{

 graycode[i] = colorcode[i] - smallest;

}

//Display Result:

cout<<"Color Code: "<<"(";

for(int i = 0;i<3;i++)

{

 if(i!=2)

 {

 cout<<colorcode[i]<<",";  

 }

 else

 {

  cout<<colorcode[i]<<")"<<endl;  

 }  

}

cout<<"Gray Code: "<<"(";

for(int i = 0;i<3;i++)

{

 if(i!=2)

 {

 cout<<graycode[i]<<",";  

 }

 else

 {

  cout<<graycode[i]<<")"<<endl;  

 }  

}

return 0;

}

8 0
3 years ago
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