In ADO.NET, what is the name of the in-memory, disconnected data container that can hold multiple related tables?

Introduction / Context:
ADO.NET introduced a disconnected data architecture to scale across tiers and intermittently connected environments. The core container for in-memory data and relations is designed to mirror a mini database in RAM.

Given Data / Assumptions:

• We are working with .NET data APIs.
• We need a structure that can hold multiple DataTable objects, DataRelation objects, and constraints.
• We want to process data without a constant connection to the database.

Concept / Approach:
A DataSet is an in-memory, disconnected cache containing DataTable collections, DataRelation relationships, and constraints. It supports XML serialization (via DiffGrams), enabling transport between tiers and synchronization upon reconnection. The DataSet is different from a single DataTable and from a database view.

Step-by-Step Solution:

Verification / Alternative check:
Documentation shows DataSet with DataTableCollection and DataRelationCollection, plus ReadXml/WriteXml for interchange.

Why Other Options Are Wrong:
views: Database objects or DataView (a different .NET type), not the container.
relations: Part of a DataSet, not the container itself.
tables: DataTable is only one table; the question asks for the multi-table container.

Common Pitfalls:
Confusing DataSet with Entity Framework contexts; EF uses different abstractions though it can materialize into DataTables/DataSets when needed.

Final Answer:
datasets.