Podcast
Questions and Answers
Which concept is best described as 'a collection of interrelated data'?
Which concept is best described as 'a collection of interrelated data'?
- Relational Model
- Data Dictionary
- Database (correct)
- Relational Algebra
Which concept defines the theoretical way of manipulating table contents using relational operators?
Which concept defines the theoretical way of manipulating table contents using relational operators?
- Database
- Data Dictionary
- Relational Algebra (correct)
- Relational Model
Which concept is best described as 'enabling programmers to view data logically rather than physically'?
Which concept is best described as 'enabling programmers to view data logically rather than physically'?
- Relational Model (correct)
- Data Dictionary
- Database
- Relational Algebra
Which concept provides a detailed accounting of all tables found within the user/designer-created database?
Which concept provides a detailed accounting of all tables found within the user/designer-created database?
Which concept is best described as 'the characteristics of entities'?
Which concept is best described as 'the characteristics of entities'?
Which concept is best described as 'an entity that can exist apart from one or more related entities'?
Which concept is best described as 'an entity that can exist apart from one or more related entities'?
Which of the following best describes a Multivalued Attribute in a database?
Which of the following best describes a Multivalued Attribute in a database?
Which of the following is true about a Single-user database?
Which of the following is true about a Single-user database?
What is the definition of an Existence Dependence in a database?
What is the definition of an Existence Dependence in a database?
What type of anomaly is an Update anomaly?
What type of anomaly is an Update anomaly?
What is the purpose of a Data Manipulation Language (DML) in a database?
What is the purpose of a Data Manipulation Language (DML) in a database?
What type of anomaly occurs when entering new records?
What type of anomaly occurs when entering new records?
What is the definition of a Candidate Key in a database?
What is the definition of a Candidate Key in a database?
What is the purpose of a Super key in a database?
What is the purpose of a Super key in a database?
What does the ROLLBACK command do in a database transaction?
What does the ROLLBACK command do in a database transaction?
What is the main function of a Foreign key in a database relationship?
What is the main function of a Foreign key in a database relationship?
What does a Multi-user database support at the same time?
What does a Multi-user database support at the same time?
In which type of join are unmatched values in one table left null?
In which type of join are unmatched values in one table left null?
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