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
vovangra [49]
3 years ago
5

Which of the following is a valid SQL statement?

Computers and Technology
1 answer:
scZoUnD [109]3 years ago
6 0

Answer:

Hi!

The correct answer is B.

Explanation:

This sentence SELECT * FROM customers JOIN orders ON (customer#) selects all the columns of both customers and orders and joins by the name of the column customer.

A and B options have syntactic problems:  

  • A and C: Same alias name for multiple tables.

  • A and C: Selected columns are ambiguous.

  • C: refers to an alias not declared on the FROM sentence.

a) SELECT c.customer#, order#, orderdate, shipdate(omits aliases) FROM customers c NATURAL JOIN orders c(same aliases definiton);

c) SELECT c.customer#, order#, orderdate, shipdate(omits aliases) FROM customers c, orders c(same aliases definiton) WHERE c.customer# = o.customer#(o not declared);

You might be interested in
Which is a linear presentation?
matrenka [14]

Answer:

i think its c mate

Explanation:

7 0
3 years ago
What is the output for the following program?
Vladimir79 [104]
The output of the program is numb = 6
4 0
3 years ago
Read 2 more answers
A way to minimize technical problems with your computer
MrRa [10]
Fix issues before they become a problem. Remember to back up your computer, Don't wait until the last minute. You could also buy Mcafee to protect your computer. Replace old equipment. Or you could look for a expert.
7 0
4 years ago
A construction-based client would like to develop an application that can analyze an image of machinery and overlay information
Elden [556K]

A form of Extended Reality which can best assist the client with information on the repair is: 3. Augmented Reality.

<h3>What is Extended Reality?</h3>

Extended reality refers to an umbrella terminology that is used to describe all real and virtual physical environments (realities) and human-machine interactions through the use of computer technologies and wearables.

<h3>The forms of Extended Reality.</h3>

In Computer technology, there are four (4) main types of Extended Reality and these include:

  • Mixed Reality
  • Haptic Reality
  • Virtual Reality
  • Augmented Reality

Augmented Reality is mainly applied in maintenance and repair by analyzing an image of machineries and provide information that will assist in the repair process.

Read more on Augmented Reality here: brainly.com/question/9054673

4 0
3 years ago
Which one of these tasks is part of the pre-production phase of game development?
Alexxx [7]
[B], developing the art style guide and production plan.

It wouldn't be [A], because patches are released to consumers of the game, to fix bugs and add new content, which won't be done until post-production.

It wouldn't be [C] either, as it is also post-production, because you are sending the game to produced, packaged and shipped, meaning the game has already been pretty much fully developed.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following commands is more recommended while creating a bot?
    9·1 answer
  • Software referd to the physical parts of the computer True or False
    9·2 answers
  • It is illegal to have __________ emergency lights on your vehicle.
    6·2 answers
  • Which of the following is NOT a benefit of safety and health programs?
    11·1 answer
  • Jason Has A Science Video Project, As He Creats His Project, He Saves, Then Comes Back A Minute Later. The File Is Now Unreadabl
    8·2 answers
  • How does leadership play a role in IT management? How does leadership need to be aligned to the company’s goals for IT managemen
    9·1 answer
  • What is the IEEE 802 standards name for a wireless network that is limited to one person's workspace?
    14·1 answer
  • How should tools be stored <br>​
    13·1 answer
  • What is the working principle of computer?​
    10·1 answer
  • How to make a Java GUI application? Discuss each step needed.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!