1.3.2 Databases

What is a database?

• A large collection of books
• A program used to write emails
• A structured set of data
• A type of computer hardware

What is an entity in a database?

• A data type like numbers or text
• A real-world object
• A special symbol used in queries
• A way to organize data in a table

What is an attribute?

• A synonym for a record
• A property of an entity
• A unique identifier for a record
• A way to connect tables

What is a field in a database?

• A row in a table
• A column in a table
• The entire database
• A way to search for data

What is a record in a database?

• A data type like numbers or text
• A single piece of data
• A group of related fields
• A way to connect tables

What is a table in a database?

• A program used to create databases
• A collection of records
• A data type like numbers or text
• A way to search for data

What is a flat file database?

• A database that stores data in multiple tables
• A special type of query
• A database that stores data in a single table
• A way to connect tables

What is a relational database?

• A database that stores data in a single table
• A special type of query language
• A database that stores data across multiple related tables
• A way to connect tables

What is the purpose of normalization in a database?

• To improve data security
• To organize data efficiently and reduce redundancy
• To create new tables
• To search for data

What is a primary key in a database?

• A field that can be empty
• A field used to uniquely identify every record
• A way to connect tables
• A special type of query