Write True if the statement is correct and False if it is incorrect. 1. A database is a collection of related data. 2. A database approach improves data sharing. 3. ERD is a visual... Write True if the statement is correct and False if it is incorrect. 1. A database is a collection of related data. 2. A database approach improves data sharing. 3. ERD is a visual representation of data model. 4. There is only one type of relationship between entities in the ER model. 5. Attributes are used to describe the characteristics of an entity. 6. Relational database stores data in one file. 7. A Primary key is an attribute that has duplicate values for different records in a table. 8. Tables are used to store data in Microsoft Access.
Understand the Problem
The question consists of a series of statements about databases and the user is asked to determine whether each statement is true or false. This requires knowledge about database concepts and their definitions.
Answer
1. True, 2. True, 3. True, 4. False, 5. True, 6. False, 7. False, 8. True
- True, 2. True, 3. True, 4. False, 5. True, 6. False, 7. False, 8. True
Answer for screen readers
- True, 2. True, 3. True, 4. False, 5. True, 6. False, 7. False, 8. True
More Information
In databases, multiple relationship types can exist. Relational databases use tables, not single files, to organize data. A primary key must have unique values.
Tips
A common mistake is confusing types of relationships in ER models and the data organization in relational databases.
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