The amount of data operated by the online analysis and processing system OLAP is very...

The amount of data operated by the online analysis and processing system OLAP is very large, and a large amount of data needs to be calculated but its timeliness requirements are low, while the online transaction processing system OLTP is mainly used to record the occurrence of a certain type of business events, and the timeliness of the data is very high, therefore OLTP is better suited to use the massively parallel processing architecture MPP. Single selection