1. Understanding Installation Considerations : Use of Ingres Locations : Location Use During DSS or OLAP Operations
 
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Location Use During DSS or OLAP Operations
If your system queries and aggregates large volumes of data--as in a Decision Support System or Online Analytical Processing system--reading from the Data location occurs more in the form of partial and complete file scans. Manipulation of large data sets occurs in the Work location. Updating, and therefore logging, in such a system is typically minor.