Relational Database Design

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Questions and Answers

What type of relationship exists between a member and transactions in a database?

  • One-to-One
  • Many-to-One
  • One-to-Many (correct)
  • Many-to-Many

What is the purpose of using Foreign Keys in database design?

  • To create a new database
  • To optimize database performance
  • To create a backup of the database
  • To make relations between tables (correct)

What does DBMS stand for?

  • Database Mastering System
  • Data Base Management Software
  • Database Management System (correct)
  • Database Modeling System

What type of database is MySQL?

<p>Relational database (C)</p>
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What is the most common type of database used nowadays?

<p>Relational database (B)</p>
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What is the function of a DBMS?

<p>To control a database (A)</p>
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What is the relationship between a book and its borrowings in a database?

<p>One-to-Many (B)</p>
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What is the purpose of learning about database design principles?

<p>To set up a new database and make changes to its structure (C)</p>
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What is the primary advantage of storing each piece of information only once in a database?

<p>It reduces the chances of data inconsistency (D)</p>
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What is the main characteristic of a relational database?

<p>It has multiple tables connected by relationships (D)</p>
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What is an entity in the context of database design?

<p>A type of object or thing about which information is stored (D)</p>
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Why is it important to have separate tables for different types of entities in a database?

<p>To ensure that each table has a consistent structure (B)</p>
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What is a principle of good database design?

<p>To have each table hold information about only one type of entity (D)</p>
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What is the purpose of using relationships between tables in a relational database?

<p>To connect related data across multiple tables (A)</p>
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What is the main disadvantage of keeping records by hand in a database?

<p>There is a lot of repetition and many chances of mistakes (A)</p>
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What is the benefit of storing all the information about a library member in one table in a database?

<p>It allows the member's information to be entered only once (C)</p>
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What is the name given to the different ways of looking at a database?

<p>views (D)</p>
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What is the purpose of the Design view in a database?

<p>To display a list of all fields in the table (C)</p>
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What is an algorithm in the context of problem-solving?

<p>A way of writing out the steps of a solution (A)</p>
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Why is it important to test and validate an algorithm?

<p>To find and correct errors (B)</p>
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What is the benefit of defining a solution in terms of input, process, output, and storage?

<p>It saves time and trouble (C)</p>
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What is the goal of an efficient solution in terms of effort and benefits?

<p>To use the least effort to get the most benefits (A)</p>
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What is the purpose of the Datasheet view in a database?

<p>To display data in a spreadsheet format (A)</p>
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What is the importance of breaking down a problem into parts?

<p>It makes it easier to define a solution (C)</p>
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