Search⌘ K
AI Features
Home
Courses
Learn SQL from Scratch

Working with String Data Type

Explore how to work with string data types in SQL by understanding the difference between identifiers and string literals. Learn to use single quotes to enclose string values properly, and discover how case sensitivity varies between SQL databases like MySQL and PostgreSQL. This lesson helps you avoid syntax errors and write accurate string-based queries.

We'll cover the following...

Difference between identifiers and string literals

Let’s try to compile a list of sales attributed to a particular salesperson, for instance, Alice Webster. Does it seem straightforward? Let’s proceed with the task and see the results:

MySQL
SELECT SalesPerson, SaleDate, ProductName, SalesAmount
FROM SalesData
WHERE SalesPerson = alice Webster

What happened?

Executing this query results in a ...