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Questions and Answers
What is the key to good decision making according to the text?
What is the key to good decision making according to the text?
- Good, timely, relevant information (correct)
- Efficient data storage
- Various industry requirements
- Specialized database types
What is a relational database?
What is a relational database?
- A repository of data
- Data stored as graphs representing relationships between objects
- Data is organized in a tree structure form
- Data is stored in a tabular form (correct)
What is the heart of a database?
What is the heart of a database?
- Multidimensional data
- Data (correct)
- Relational data
- Binary files
What is the main purpose of a database?
What is the main purpose of a database?
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What types of data can a database store?
What types of data can a database store?
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Study Notes
Key to Good Decision Making
- Effective decision making relies on gathering accurate information, analyzing data, and understanding the potential outcomes of choices.
- Utilizing a systematic approach can help minimize biases and errors in judgment.
Relational Database
- A relational database is a structured collection of data organized into tables consisting of rows and columns.
- It uses a unique identifier for each record (primary key) and allows for relationships between different tables through foreign keys.
Heart of a Database
- The core component of a database is the database management system (DBMS), which facilitates data storage, retrieval, and management.
- The schema defines the structure and organization of data within the database.
Main Purpose of a Database
- The primary purpose of a database is to store, manage, and retrieve data efficiently while ensuring data integrity and security.
- It supports data organization, prevents redundancy, and enables easy access to information.
Types of Data a Database Can Store
- Databases can store various data types such as text, numbers, dates, binary (images, files), and more.
- They can also accommodate structured data (organized in a defined format) as well as unstructured data (like emails or multimedia content).
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