Koen Verbeeck (11/18/2013)
Maybe - and just maybe - you might benefit from a (clustered) columnstore index - if you're using SQL Server 2012 or 2014 - because those indexes compress the data really efficient and you might get less IO.
and whether the table is read only or not (SQL 2012).
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability