What is user-defined data type? - DOT.NET

What is user-defined data type?

A user-defined type is a named data type created by the user. It can be a distinct type sharing a common representation with some built-in data type or it can be a structured type which has a sequence of named attributes that each has a type. Thus based on this it can be categorized as:

- Distinct type
- Structured type
- Reference type
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