TINYINT is one of the simplest numeric data types you can ever work with in SQL databases. It stores small numeric values, saves space, and is commonly used for flags, statuses, and boolean-like fields. But the moment you bring C# into the picture, things get intriguing. There is no TINYINT keyword in C#, and no one-to-one mapping you can use. Instead, you are left asking an important question: What is the correct C# equivalent of the TINYINT data type in SQL?