Data Types & Constraints: Overview

Understand why data types matter for storage, validation, and performance

Master common constraints (PRIMARY KEY, FOREIGN KEY, NOT NULL, UNIQUE, CHECK)

Learn to choose appropriate data types for different scenarios

Prevent data integrity issues through proper constraint design

Understand why data types matter for storage, validation, and performance

Master common constraints (PRIMARY KEY, FOREIGN KEY, NOT NULL, UNIQUE, CHECK)

Learn to choose appropriate data types for different scenarios

Prevent data integrity issues through proper constraint design