OLE DB object model:\nIs an OLE DB collection defined as an object that contains a group of other objects?

Difficulty: Easy

Correct Answer: Correct

Explanation:


Introduction / Context:
OLE DB and higher-level libraries (such as ADO) expose object models with objects and collections. Understanding the term “collection” helps in navigating metadata and runtime objects such as catalogs, tables, columns, and properties.



Given Data / Assumptions:

  • OLE DB uses COM interfaces to expose data and metadata.
  • Collections group homogeneous or related items (e.g., a set of properties or columns).
  • We are verifying the general definition of a collection.



Concept / Approach:
In object models, a collection is a container that holds a set of objects, often exposing enumeration methods as well as access by name or index. OLE DB follows this pattern in several areas (e.g., collections of properties or schema rowsets). Thus, the description of a collection as an object containing a group of other objects is correct.



Step-by-Step Solution:
Identify common OLE DB artifacts (tables, columns, properties).Recognize that many are exposed through collection interfaces.Confirm that a collection conceptually contains multiple objects and supports navigation.



Verification / Alternative check:
Documentation shows collections like “Properties” or “Tables” that enumerate child objects; ADO mirrors this via Properties/Fields collections.



Why Other Options Are Wrong:
Limiting the definition to ADO is unnecessary—collections are a general modeling concept. Transaction models do not affect the definition.



Common Pitfalls:
Confusing a collection (container) with a single complex object; overlooking that collections may be read-only or provider-specific.



Final Answer:
Correct

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