title: Row Inserted and Updated Time in Fact Table
body: <p>I see there is an importance in having a row inserted and a row last updated fields in a fact table. But I could not find any standard data warehouse or a reference which says that this is a good thing to do. I am uncertain whether this is because it is a bad practice; if so why should it be so? If it is because of the data size, I see it is only 8bytes for a full date field.</p>
  
  <p>Any help is greatly appreciated!!!</p>