juniorADO.NET
What is DataSet in ADO.NET?
Updated Apr 28, 2026
Short answer
DataSet is an in-memory representation of data.
Deep explanation
It stores multiple tables and relationships in memory, allowing disconnected operations.
Real-world example
Offline data processing.
Common mistakes
- Using for large datasets unnecessarily.
Follow-up questions
- What is DataTable?
- When to use DataSet?