SAP HANA:The future of database technology      The capacity of main memory in servers has continuously increased over the years, whereas prices have dramatically dropped. Today, a single enterprise class server can hold several  terabytes of main memory. At the same time, prices for server main memory dramatically  dropped over the last few decades. This increase in capacity and reduction in cost makes it a  viable approach to keep huge amounts of business data in memory. This section discusses  the benefits and challenges.      In few words you can understand SAP HANA plus  analyzing this evaluation:    Typical access speeds  Disk     4,000,000 ns  Memory         0.4 ns  Speed   10,000,000   Falling prices move processing from Disk/SSD to In-Memory        In-Memory Computing     The elements of In-Memory computing are not new. However, dramatically improved hardware economics and  technology innov...
 
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