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
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

You might be interested in
Write the definition of a class clock. the class has no constructors and three instance variables. one is of type int called hou
expeople1 [14]
<span>The definition of a class clock. the class has no constructors and three instance variables. one is of type int called hours, initialized to 12, another is of type boolean called isticking, and the last one is of type integer called diff. 
</span><span>
public class Clock

{private int hours = 12;
private boolean isTicking;
private Integer diff;}</span>
4 0
3 years ago
1. Why does a computer have different types of ports?
iren2701 [21]

Answer:

Computer ports are classified into two types based on the protocols used. A protocol is a set of rules and standards to be followed during data transfer and communication. Usually, data is transmitted in a particular pattern.

Explanation:

3 0
2 years ago
Read 2 more answers
If you create and invoke a recursive function without accounting for a base case, what can go wrong?
oksian1 [2.3K]

Every recursive function should have an exit criterion (=handling the base case) to exit the recursion.

Without it, it wil recurse forever, until system resources run out (typically the call stack will overflow and your program will crash).

6 0
3 years ago
Write a static method named anglePairs that accepts three angles (integers), measured in degrees, as parameters and returns whet
padilas [110]

Answer:

The java program for the scenario is given below.  

import java.util.*;

public class Test

{

// method returning sum of all digits in the integer parameter

static boolean anglePairs(int a1, int a2, int a3)

{

   // variable to hold sum of two complementary angles

   int comp=90;  

   // variable to hold sum of two supplementary angles

   int supp=180;

   // boolean variable to hold result

   boolean result = false;

   if( (a1+a2 == comp) || (a2+a3 == comp) || (a1+a3 == comp) )

   {

       if( (a1+a2 == supp) || (a2+a3 == supp) || (a1+a3 == supp) )

           result = true;

       else

           result = false;

   }    

           // return variable result

       return result;

}

public static void main(String[] args)

{

   // method is called by passing three positive angles

   System.out.println("The pair of angles have both complementary and supplementary angles " + anglePairs(100, 80, 90) );    

}

}

OUTPUT

The pair of angles have both complementary and supplementary angles false

Explanation:

The program works as described below.

1. The method, anglePairs(), is declared as static having return type as Boolean which takes three positive integer parameters.

static boolean anglePairs(int a1, int a2, int a3)

{

}

2. The integer variable, comp, is declared and initialized to 90.

3. The integer variable, supp, is declared and initialized to 180.

4. The Boolean variable, result, is declared and initialized to false.

5. Using if-else statements, sum of two angles are compared with the variables, comp and supp.

6. If the sum of any two angles match with both, comp and supp, variables, the Boolean variable, result is assigned value true. Otherwise, result is assigned value false.

7. The value of result is returned.

8. Inside main() method, the function anglePairs() is called and three positive numerical values are passed as parameters.  The output is displayed.

9. All the above code is written inside the class Test.

10. User input is not taken since it is not mentioned in the question.

8 0
3 years ago
Mike needs to write the primary objectives of a project in a project plan. In which section should he write them?
Advocard [28]

Mike needs to write the primary objectives of a project in a project plan. He should write this under the SCOPE section of the project plan.

Explanation:

  • Project scope is the part of project planning that involves determining and documenting a list of specific project goals, deliverables, features, functions, tasks, deadlines, and ultimately costs.
  • It is what needs to be achieved and the work that must be done to deliver a project.
  • The Scope of Work (SOW) is the area in an agreement where the work to be performed is described.
  • The SOW should contain any milestones, reports, deliverables, and end products that are expected to be provided by the performing party. The SOW should also contain a time line for all deliverables.
  • The scope is simply all the work that needs to be done in order to achieve a projects objectives.
  • A project scope, or project scope statement, is a tool used to describe the major deliverables of a project including the key milestones, high level requirements, assumptions, and constraints.

7 0
4 years ago
Other questions:
  • Suppose you send data to the 11111111 11111111 11111111 11111111 ip address on an ipv4 network. to which device(s) are you trans
    15·1 answer
  • 13. You're expecting an important call from Mr. Suarez, a potential customer. While waiting for this call, your supervisor calls
    15·1 answer
  • Will a tablecloth that is 155 cm long cover a table that is 1.6 m long?
    12·2 answers
  • You want to boot a linux system into singer user mode/ what options might you add to a linux kernel options list in a boot loade
    9·1 answer
  • Which of the following payment types require you to pay upfront?
    9·1 answer
  • Study the sentences below. A.Changing the properties of characters in a sentence or paragraph in a Word document helps increase
    5·2 answers
  • Free 35 points!!!
    11·2 answers
  • Computer in education are used for teaching and learning aids​
    14·1 answer
  • What are some examples of productions categorized as non-broadcast productions?
    6·1 answer
  • if we intend to include a servo motor as an actuator, what feature should we include when selecting a microcontroller?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!