In a Type 1 slowly changing dimension, what happens when a non-key attribute changes?

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Multiple Choice

In a Type 1 slowly changing dimension, what happens when a non-key attribute changes?

Explanation:
In a Type 1 slowly changing dimension, changes to non-key attributes are applied by updating the existing row in place, overwriting the old values. The surrogate key stays the same and no history is kept, because Type 1 does not preserve previous versions. This is different from Type 2, which would insert a new row with a new key to retain history, or Type 3, which stores a previous value in an additional field.

In a Type 1 slowly changing dimension, changes to non-key attributes are applied by updating the existing row in place, overwriting the old values. The surrogate key stays the same and no history is kept, because Type 1 does not preserve previous versions. This is different from Type 2, which would insert a new row with a new key to retain history, or Type 3, which stores a previous value in an additional field.

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