The OLAP tools help the users in analyzing the different dimension of the multi-dimensional data
. The examples are time-series and the trend analysis, which can be viewed by the users. OLAP is used in the data mining. The OLAP Server acts as a facilitator between the client and the DBMS (database management system). OLAP server is intelligent enough to know how the data organization in a database and with the used of its special functions, it is able to analyze huge data in a different dimensional way, which helps the corporate houses immensely in understanding the business trend and vital decision making. All major DBMS have their own OLAP servers.
OLAP works in a multi user client server mode offering rapid reply to the queries. The database complexity and size does not matter here. The enterprise information is synthesized by its users with the help of comparative and personalized viewing and the historic and projected data analysis through various data model scenario including what if analysis. All this is achieved by the help of OLAP system which takes the help from OLAP server in producing the desired output of the management queries. These OLAP servers are a high capacity and multi user manipulation engines designed in order to support and use the multi dimensional database structures. The multi dimensional structure is then arranged to allow locate and access data items, based on intersection of dimension members defining the data items.
The server design and its data structure are optimized for quick and ad hoc report retrieval in many orientations. It also helps fast and flexible transformation and calculation of the raw data which is based on the formulaic relationship. OLAP Server may stage the process multi dimensional information physically to the end-users, or it can also populate the data structure in real time from the relational database or any other type of databases. With the latest state of the information technology and the increasing requirements by the end users for a consistent & rapid response, the use of OLAP server in staging the multi dimensional data is always a preferred method.