Discussion in brief various types of the data warehouse. From an architecture point of view, there are three data warehouse models. They are as follows … Read more
The multiway. array aggregation or simply MultiWay method computes a full data cube by using a multidimensional array as its basic data structure. It is … Read more
The top-down development of an enterprise warehouse serves as a systematic solution and minimizes integration problems. However, it is expensive, takes long dining to develop, … Read more
The following are general optimization techniques for the efficient computation of data cubes. Technique One (sorting, hashing, and grouping)— Sorting, hashing, and grouping operations should … Read more
Data warehouse systems use back-end tools and utilities to populate and refresh their data. These tools and facilities include the following functions— 1 Data Extraction … Read more
A recommended method for the development of data warehouse systems is to implement the warehouse in an incremental and evolutionary manner, as shown in fig. … Read more
Metadata is to the data warehouse what the card catalog is to a traditional library. It serves to identify the contents and location of data … Read more
The data warehouse is designed for strategic decision support and is largely built up from the database that makes up the operational database The basic … Read more
Write a short note on types of databases. There is a number of, different data repositories on .which mining can be performed. In principle, data … Read more