I think the correct answer might be C, where the old record is flagged and the new one is added. That seems to align with what I remember about SCD Type 2.
I feel pretty confident about this one. The key with SCD Type 2 is that we need to keep a full history of changes, so the old record can't just be deleted or updated. The new changed record has to be added alongside the old record, which is then flagged as no longer current. I'm going with C.
Okay, let me walk through this step-by-step. With SCD Type 2, we want to preserve the history of changes, so the old record shouldn't be deleted. And we also don't want to just update the old record, since that would lose the history. So I think the correct answer is C - the old record is flagged and the new changed record is added.
Hmm, I'm a bit unsure about this one. I know SCD Type 2 is about tracking changes, but I can't quite recall the exact behavior when a change is detected. I'll have to think this through carefully.
Option C is definitely the correct answer. Flagging the old record and adding the changed one is the essence of SCD Type 2 in SAS Data Integration Studio.
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