Which of the following is NOT typically done within an On-Line Analytic Processing (OLAP) system?

In the context of On-Line Analytic Processing (OLAP) systems, transaction processing is generally not a primary function performed within these environments. OLAP is specifically designed to facilitate complex queries and analytical operations on large volumes of data, often for the purposes of reporting and data analysis. Functions such as pivoting data, reporting, and even data mining can all take place within OLAP systems, as they are inherently aimed at enabling users to analyze data for insights and decision-making.

Transaction processing, on the other hand, is typically associated with On-Line Transaction Processing (OLTP) systems. OLTP focuses on the operational aspects of data management, handling a large number of short online transactions that require fast query processing and a high degree of concurrency. The goal of OLTP is to ensure the accuracy and integrity of transaction data, often involving simple queries that update records. In contrast, OLAP systems prioritize read-heavy operations and are optimized for data retrieval, aggregation, and complex querying rather than the detailed transactional activities of an OLTP environment.