SCD type 2 will store the entire history in the dimension table. In SCD type 2 effective date, the dimension table will have start-date and end-date as the fields. If the end-date is null, then it ...
Since sickle cell disease (SCD) carries an increased risk for ischemic stroke, stroke prevention in this patient population is vital. To this end, the 2014 NHLBI guidelines specify that children with ...
In this approach, only the information about a previous value of a dimension is written into the database. An ‘Old ‘or ‘Previous’ column is created which stores the immediate previous attribute. The ...
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