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Snack-Sized Data Basics
Data Types
Data comes in different shapes and sizes. We’ll break it down over the next few weeks.
In the meantime, let’s quickly discuss what data types are and why they are important.
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Simply put, a data type defines what type of information is being stored in a table column. Some examples are numbers, text, dates and logical values. There are more data types, but we'll focus on those four categories for now.
Each data type requires a specific amount of storage, measured in bytes. Smaller data types use less space, while larger ones require more. ​
When creating a table in a database, specifying the correct data type is crucial. It organizes the data efficiently, optimizes storage, improves performance, and ensures the integrity of your database.​
Here's a preview of what we'll cover over the next few weeks. We'll also go over their corresponding SQL terms.
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