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yKpoI14uk [10]
3 years ago
7

You need to extract data from the system your predecessor created. you discover tables have been created according to the third

normal form. you find the needed data in three different tables. what SQL syntax allows you to garner this data?
a. union
b. join
c. Select
d. Having

Computers and Technology
1 answer:
MissTica3 years ago
4 0

Answer:

b. join

Explanation:

Correct answer:

Join: It allow join(paste) two tables by one or more commun columns

Example in the image attached

Bad answer:

Union: it only allow paste two tables with the same structure

select: it only allow get information from 1 table if not use join

having: it only allow get filtered information with a condition

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Which engineer may design a GPS for a vehicle?
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The measure of the maximum amount of data that can travel through a computer’s communications path in a given amount of time is
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4 years ago
Your task is to build a palindrome from an input string.A palindrome is a word that readsthe same backward or forward. Your code
White raven [17]

Answer:

The program in Python is as follows:

word = input("Word: ")

if len(word) < 5:

   print("At least 5 characters")

else:

   pal = word[0:5]

   word = word[0:4]

   word = word[::-1]

   pal+=word

   print(pal)

Explanation:

This gets the word from the user

word = input("Word: ")

This checks if the length of the word is less than 5.

if len(word) < 5:

If yes, this tells the user that at least 5 characters is needed

   print("At least 5 characters")

If otherwise

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3 years ago
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