InterSystems Ensemble HL7v2 Message Throughtput by Roberto Zicari · Published December 1, 2010 · Updated February 16, 2014 Vik Nagjee, Dave Loveluck, InterSystems. DOWNLOAD (PDF)
SQL over Hadoop: Performance isn’t everything… March 16, 2015 by Roberto Zicari · Published March 16, 2015
When Standard SQL Queries Can’t Get the Job Done January 1, 2009 by Roberto Zicari · Published January 1, 2009 · Last modified February 16, 2014