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About this document
- Pages
- 5 pages
- Price
- $5 one-time, yours to keep
- Membership
- Included in every plan
- Format
- Subject
- Computer Science, Database Management
- Module
- CS371
This document is a midterm quiz for a Database Designs and Systems course. It covers key concepts such as data anomalies, database systems, primary keys, normalization, SQL, and entity relationships. It is useful for students preparing for exams or assessments in database management.
What's inside
- Data anomalies and redundant data
- Types of database systems
- Primary keys and surrogate keys
- Normalization and its importance
- SQL statements and queries
Who it is for: Students taking the CS371 Database Designs and Systems course. (Undergraduate)
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Summary
Database design and systems are covered. Students get practice with multiple-choice questions and SQL queries.
Multiple choice questions
Database systems and design are discussed. Students answer questions on redundancy, database types, keys, normalization, SQL, and relationships.
SQL queries for a table
Students write SQL SELECT statements. They display and sort data, and calculate averages. They use a given PROPERTY table.
Normalization and database systems
Normalization is explained. Students learn about the four components of a database system.
Key terms
- Redundant data
- Data that is repeated in a database.
- Primary key
- A unique identifier for a row in a table.
- Surrogate key
- An artificial key used as a primary key.
- Normalization
- The process of organizing a database to reduce redundancy.
- SQL
- A language used to manage and manipulate relational databases.
- Entity
- An object or thing in the real world that is represented in a database.
Questions this document helps with
- What are the risks of redundant data?
- What is normalization and why is it important?
- What are the components of a database system?
Summary written with AI from the document's text.
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