What is the difference between OLAP and OLTP and what is a data warehouse

Source: Internet
Author: User

The difference between OLAP and OLTP and what is Data Warehouse OLAP is often referred to as a data warehouse. But the data warehouse is only part of OLAP, not all. OLTP multi-index than OLAP, and the real-time requirements of high, updated and modified many. OLAP generally seldom modifies and updates data, and so on, usually query and analysis. OLTP needs to adhere to three paradigms to achieve real-time response data changes and to maximize redundant data. OLAP does not require this, the table in OLAP can be very large, unlike OLTP in order to adhere to the three major paradigms, the table is divided into smaller. oltp= online Transaction processing (OLTP) olap= online Analytical processing (OLAP)

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