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Arturiano [62]
3 years ago
13

In many DBMSs where no strict separation of levels is maintained, this one language is used by the DBA and database designers to

define both the conceptual and internal schemas. Otherwise, it is used to specify the conceptual schema only. True or False.
Computers and Technology
1 answer:
marissa [1.9K]3 years ago
5 0

Answer: False

Explanation:

This means that the mappings between the two schemas may be specified in either one of these languages.In most relational DBMSs today, there is no specific language that performs the role of SDL. Instead, the internal schema is specified by a combination of functions, parameters, and specifications related to storage. These permit the DBA staff to control indexing choices and mapping of data to storage

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End user needs assessment is a formal procedure to analyze a user's computer needs; it involves a specific set of steps that are
Veseljchak [2.6K]

Answer:

The answer is option b.

Explanation:

  • An end-user is an individual user that includes a configured hardware or software that is not operated by another person. Many computer users with one way or another are called end-users.
  • Assessment is the method that collects and shares information from different sources and end-users are not needs the assessment which involves a particular set of steps and does not take place sequentially.
6 0
3 years ago
can i get an access code for free online? if yes, what website is it so i can get a free access code?​
PIT_PIT [208]

Answer:

Codecademy. Codecademy is one of the most popular free coding websites for beginners.  

freeCodeCamp.  

Coursera.  

edX.  

Codewars. ..

Code Conquest. .

GA Dash. .

Khan Academy (highly recommed)

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6 0
2 years ago
In two to three sentences, describe one advanced search strategy and how it is useful.
Sveta_85 [38]

Answer:

A search stagey is useful because you can make complicated searches easily and also get reliable data.

8 0
3 years ago
2.13 LAB: Branches: Leap Year
Neporo4naja [7]

Answer:

The program in Python is as follows:

year = int(input("Enter a year: "))

print(year,end=" ")

if year % 4 == 0:

  if year % 100 == 0:

      if year % 400 == 0:           print("is a leap year")

      else:           print("is not a leap year")

  else:       print("is a leap year")

else:   print("is not a leap year")

Explanation:

This gets input for year

year = int(input("Enter a year: "))

This prints year, followed by a blank

print(year,end=" ")

If year is divisible by 4

if year % 4 == 0:

If yes, check if year is divisible by 100

  if year % 100 == 0:

If yes, check if year is divisible by 400; print leap year if true

      if year % 400 == 0:           print("is a leap year")

print not leap year if year is not divisible by 400

      else:           print("is not a leap year")

print leap year if year is not divisible by 100

  else:       print("is a leap year")

print leap year if year is not divisible by 4

else:   print("is not a leap year")

5 0
3 years ago
What is the output of the following code? public class Test { public static void main(String[] args) { String s1 = new String("J
Darya [45]

Answer:

false true

Explanation:

In the code snippet, two string objects are created in java with the value Java.

The print method first checks the condition s1==s2 and outputs false, This is so because the operator == which is used for equality in other primitive data types like ints cannot be applied to the String data type. In the second part of the print function, the equals function s1.equals(s2) is used and it prints true since the two string are equal

6 0
3 years ago
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