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data werehousing

Write a short note on multiway array aggregate for All cube computation.

September 26, 2021September 26, 2021 by Sunaina

The multiway. array aggregation or simply MultiWay method computes a full data cube by using a multidimensional array as its …

Read moreWrite a short note on multiway array aggregate for All cube computation.

Categories Data Mining & Warehousing

What are general optimization techniques for the efficient computation of data cubes?

January 12, 2023May 27, 2021 by Sunaina

The following are general optimization techniques for the efficient computation of data cubes. Technique One (sorting, hashing, and grouping)โ€” Sorting, …

Read moreWhat are general optimization techniques for the efficient computation of data cubes?

Categories Data Mining & Warehousing

The Data warehouse used some tools. What are the functions?

May 21, 2021May 25, 2021 by Sunaina

Data warehouse systems use back-end tools and utilities to populate and refresh their data. These tools and facilities include the …

Read moreThe Data warehouse used some tools. What are the functions?

Categories Data Mining & Warehousing

Describe the recommended approach for data warehouse development.

May 21, 2021May 24, 2021 by Sunaina

A recommended method for the development of data warehouse systems is to implement the warehouse in an incremental and evolutionary …

Read moreDescribe the recommended approach for data warehouse development.

Categories Data Mining & Warehousing

What are the pros and cons of the top-down and bottom-up approaches to data warehouse development?

May 21, 2021May 23, 2021 by Sunaina

The top-down development of an enterprise warehouse serves as a systematic solution and minimizes integration problems. However, it is expensive, …

Read moreWhat are the pros and cons of the top-down and bottom-up approaches to data warehouse development?

Categories Data Mining & Warehousing

What are different types of data warehouse models, from the architecture point of view?

May 21, 2021May 22, 2021 by Sunaina

Discussion in brief various types of the data warehouse. From an architecture point of view, there are three data warehouse …

Read moreWhat are different types of data warehouse models, from the architecture point of view?

Categories Data Mining & Warehousing

Discuss the role of metadata in the data warehouses.

May 21, 2021May 21, 2021 by Sunaina

Metadata is to the data warehouse what the card catalog is to a traditional library. It serves to identify the …

Read moreDiscuss the role of metadata in the data warehouses.

Categories Data Mining & Warehousing

A data warehouse is built on Historical data and is not guaranteed to be up-to-date information”. Comment.

February 13, 2021February 13, 2021 by Sunaina

The data warehouse is designed for strategic decision support and is largely built up from the database that makes up …

Read moreA data warehouse is built on Historical data and is not guaranteed to be up-to-date information”. Comment.

Categories Data Mining & Warehousing

Explain various data types for data mining, with their application.

January 13, 2021January 13, 2021 by Sunaina

Write a short note on types of databases. There is a number of, different data repositories on .which mining can …

Read moreExplain various data types for data mining, with their application.

Categories Data Mining & Warehousing

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