Add a New Column
Explore how to add a new column to an existing MySQL table using the alter table command. Learn to define column properties like type and constraints, update existing data, and query values using SQL. This lesson helps you modify database structure and manage data confidently.
We'll cover the following...
We'll cover the following...
So far, we’ve become familiar with different queries like insert, delete, update, and select. We’ve also used several operators for our different requirements. Now, we’ll learn to add a new column to an existing table. Let’s suppose that we want to introduce a column with the name identity. We assume that each customer has a unique identity number, and we want to introduce this concept to our data model.
The alter table command
We execute the following alter table ...