AWS Solutions Architect Associate (SAA-C02) Exam Prep Course - 2021 UPDATED! - Relational DatabasesÂ

The video tutorial provides an introduction to relational databases in AWS, explaining their structure, key terminology, and the process of creating views using SQL queries. It also covers the concept of normalization, detailing its impact on database performance and design. The tutorial aims to equip viewers with a foundational understanding of relational databases, preparing them to explore different database options in AWS.

What is the primary purpose of using relational databases in AWS?

• To increase data redundancy

• To eliminate the need for SQL

• To relate tables to each other

• To store data in a flat structure

In relational databases, what is another term for a 'row'?

• Entity

• Tuple

• Relation

• Attribute

What is a 'view' in the context of relational databases?

• A database schema

• A type of primary key

• A saved SQL query result

• A physical table

What is the role of a primary key in a table?

• To uniquely identify each record

• To store duplicate records

• To define the table's schema

• To reference another table

How does a foreign key function in a relational database?

• It references a primary key in another table

• It is used to store large text data

• It acts as a unique identifier within its own table

• It defines the data type of a column

What is the main goal of normalization in relational databases?

• To simplify database queries

• To create more tables for faster reads

• To optimize data storage and reduce redundancy

• To increase data redundancy

What is a potential downside of a highly normalized database?

• Simplified data structure

• Slower reads

• Increased data redundancy

• Slower writes