Data Integration Question: Download Data Integration PDF
Explain History Preserving?
Answer:
- History Preserving is for providing new row in the target instead of updating the existing row.
- The columns are indicated for transforming the changes that are to be preserved.
- New rows are created when the value of certain column changes.
- Each of these rows is flagged as UPDATE.
- The UPDATE flag is applied for the input data set.
- The columns are indicated for transforming the changes that are to be preserved.
- New rows are created when the value of certain column changes.
- Each of these rows is flagged as UPDATE.
- The UPDATE flag is applied for the input data set.
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