Handling Missing Data with NULL

Lecture 39 - Ensuring Data Integrity with Constraints

Lecture 39: Ensuring Data Integrity with Constraints

by Najeeb Alam
October 3, 2025October 3, 2025
3 min read

This lecture covers data integrity constraints. Data integrity refers to the accuracy, consistency, and reliability of data stored in a database. We want to prevent bad… Read More »Lecture 39: Ensuring Data Integrity with Constraints

Lecture 38 - Handling Missing Data with NULL

Lecture 38 – Handling Missing Data with NULL

by Najeeb Alam
October 3, 2025October 3, 2025
3 min read

This lecture covers handling NULL values. In the real world, data is often incomplete. A customer might not have a phone number, or a post… Read More »Lecture 38 – Handling Missing Data with NULL