Data Integrity Demystified

This session explains how database design constructs, from table structure to data types and constraints, help ensure data integrity. It also distinguishes features that support integrity from those intended to improve database performance.

Syllabus

Intro
Session Evaluation
Data Integrity
What Does It Mean???
Why Does This Matter?
Data Storage & Data Engines
How Do Data Storage & Data Engine Create Integrity?
Naming Convention Examples
How Do Naming Conventions Create Integrity?
Different Types of Integrity
How Does Relational Database Design Create Integrity?
Primary key Constraint
Tip: Identify the Primary key Column(s)
How do Surrogate Primary Keys Create Integrity?
Unique Key Constraint
Foreign Key Constraint
Foreign Key Example
How Do Data Types Create Integrity?
How Does NOT NULL Create Integrity?
How Do Default Constraint Create Integrity?
How Do Check Constraints Create Integrity?
Clustered index: Integrity or Performance
Integrity Used By the Query Optimizer