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Look at Esteban Zimányi's 2006 paper "Temporal Aggregates and Temporal Universal Quanti?cation in Standard SQL" (available on pages 16 to 25 of this pdf doc, or get hold of...
July 16, 2011 at 12:36 am
#1353806
Greate article and the disscussion about historical data, here I am going to say something and need your help.
I would also add effectiveStartDate and effectiveEndDate fields to the PayGrade_Details...
July 15, 2011 at 1:42 am
#1353230