Note: a glossary of technical terms used in these articles can be found on the Web sites of the authors. In addition, a listing of earlier articles and/or columns in this series can be found on DMReview.com, MindfulData.com and InbaseInc.com.

  In our last column, we completed our second update to policy P861. In this column, we will apply a delete transaction. As Figure 1 shows, all original deletes are translated into two physical transactions against the target table, which we call temporal transactions. The first of the two is always a physical update; the second is always a physical insert.

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