1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Readme [11.4K]
3 years ago
11

The first query is computationally less expensive than the second query. (Assume no indexes exist on release_date.) Query 1: SEL

ECT DISTINCT(release_date) FROM books; Query 2: SELECT release_date FROM books;True or false?
Computers and Technology
1 answer:
sdas [7]3 years ago
7 0

Answer:

false

Explanation:

The term 'computationally expensive' means that a given mathematical function, code or an algorithm has high computational complexity. In addition, the mathematical function or algorithm will require several steps and procedures to be completed. Based on this, the statement made in this question is not true.

You might be interested in
A basic program to find the area of a square​
uranmaximum [27]

The area of a square is simply the square of the side. So, you only need to write a program that receives a number as input, which is the side of the square, and returns that number squared, which will be the area of the square.

You didn't specify any language, so for example here's a C implementation that receives the side from the user and returns the area:

#include <stdio.h>

int main()

{

   double side, area;

   

   do{

       printf("Enter the side of the square (must be >0): ");

       scanf("%lf", &side);

   } while(side<=0);

   area = side * side;

   printf("The area is %lf", area);

}

4 0
3 years ago
What type of printer heats toner to adhere it to the paper? inkjet . impact. 3D. laser.
Luden [163]

Answer:

laser

Explanation:

These are well known printer types now.  Let's review how they work to determine in which does heat plays a role.

inkjet: inkjet printers are printer throwing ink at the paper in the form of little drops.  No heat involved here.

impact: That's the oldest technology, where a printing head is moving left and right to punch a printing ribbon and transfer ink onto the paper.  No heat involved.

3D: 3D printers don't usually use paper... as they use other materials to create a 3D representation of a model.  Heat is involved in the melting of the material before it's placed on the building model.  But no paper involved here.

laser: laser printers are working very much like a photocopier machine... memorizing the pattern to be printed, then transferring it onto paper... using heat.

8 0
3 years ago
PLEASE HELP WITH MY COMPUTER
qaws [65]

Answer:

try powering it off the turn it back on

Explanation:

5 0
3 years ago
Read 2 more answers
HELP I WILL MARK BRAINLIEST!!! I NEED ASAP!!!
Alex777 [14]

#This is a way without a loop

friends = list(map(str,input("Enter Names: ").split()))

print(sorted(friends))

#This is a way with a loop (for&&while)

friends = list(map(str,input("Enter Names: ").split()))

cool = True

while cool:

   cool = False

   for i in range(len(friends)-1):

       if friends[i] > friends[i+1]:

           coo = friends[i]

           friends[i] = friends[i+1]

           friends[i+1] = coo

           cool = True

print(friends)

4 0
4 years ago
Describe the purpose of working directory and how it can be speed or slow file access
Cloud [144]

Explanation:

The working directory is just a file path on your computer that sets the default location of any files you read. If you want to read a file 'file.txt'.

6 0
2 years ago
Other questions:
  • Which of the following is a narrative essay most like
    8·2 answers
  • A range in which a measuring instrument or controller does not respond is the
    12·1 answer
  • A _____ is a harmful program that resides in the active memory of a computer and duplicates itself. Select one: a. scareware b.
    7·1 answer
  • Write a SELECT statement that selects all of the columns for the catalog view that returns information about foreign keys. How m
    6·1 answer
  • Tell me at list 5 farm animals dieases​
    10·2 answers
  • Subscript numbering always starts at what value?
    14·1 answer
  • Write a Java statement to create an object LG of class TvSets
    11·1 answer
  • Give four advantages for ssd compared to hdd
    15·2 answers
  • ARGENT !!20 POINTS <br> А ________ translates commands from a computer to draw lines on paper.
    10·2 answers
  • Evaluate a career in the telecommunications industry that most interests you. What about the career appeals to you?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!