Scenario: You are tasked with implementing a hierarchical view of data, where each employee has associated orders. Which ADO.NET data binding approach would you choose for this task?
- DataSet with DataRelation
- DataReader with multiple queries
- Entity Framework
- DataAdapter with JOIN queries
The correct option is DataSet with DataRelation. A DataSet with DataRelation allows you to represent hierarchical data structures easily. By defining a relationship between the employee and order tables using DataRelation, you can create a hierarchical view where each employee has associated orders. DataReader with multiple queries might work but can be complex to manage and maintain. Entity Framework is an ORM for database interactions and might not directly represent hierarchical data. DataAdapter with JOIN queries can retrieve related data but might not provide a straightforward hierarchical structure.
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