The PCTFREE and data compression settings can boost query performance as fewer database blocks need be accessed to read the same set of data, however, it is when we query on the partition key that we have the potential for even more improvement. Querying on the key will only access the p...
The other study conducted by Raghupathi and Raghupathi showed that the Hadoop ecosystem has significant drawbacks for medium or big size healthcare providers: (a) it requires a great deal of programming skills for data analytics tasks using MapReduce; and (b) it is almost difficult to install,...