Question:
The spatial data is linked with associated attribute data by means of a common key called .........
The spatial data is linked with associated attribute data by means of a common key called .........
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Always use a Unique ID to join spatial and attribute data accurately.
Updated On: Jan 14, 2026
- Unique ID
- Special ID
- Unique number
- Special number
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The Correct Option is A
Solution and Explanation
In GIS databases, spatial data (maps, coordinates) are connected to attribute data (descriptions, statistics) using a common key field.
This key is typically known as a Unique ID (UID).
The Unique ID ensures that each spatial feature can be linked correctly with its related attribute information.
Without a unique identifier, it would be impossible to maintain a one-to-one relationship between spatial and tabular data.
Therefore, option (A) Unique ID is the correct answer.
This key is typically known as a Unique ID (UID).
The Unique ID ensures that each spatial feature can be linked correctly with its related attribute information.
Without a unique identifier, it would be impossible to maintain a one-to-one relationship between spatial and tabular data.
Therefore, option (A) Unique ID is the correct answer.
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