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Data Mining & Warehousing

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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
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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)β€” Sorting, …

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

Categories Data Mining & Warehousing
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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
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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 …

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Categories Data Mining & Warehousing
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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
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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
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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 …

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Categories Data Mining & Warehousing
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What is a virtual data warehouse?

December 6, 2022May 20, 2021 by Sunaina

A virtual warehouse is a set of views over an operational database For efficient query processing, only some of the …

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Categories Data Mining & Warehousing
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What is the architectural component of a data warehouse?

May 21, 2021May 19, 2021 by Sunaina

Various architectural components of a data warehouse are shown in fig. 2.11 and explained below β€” Load Manager The load …

Read moreWhat is the architectural component of a data warehouse?

Categories Data Mining & Warehousing
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Discuss data warehouse functions and explain the data flow within the data warehouse.

May 17, 2021May 18, 2021 by Sunaina

Data warehouse function and data flow within the data warehouse is as follows 1. Extract and Load Data Data. extraction …

Read moreDiscuss data warehouse functions and explain the data flow within the data warehouse.

Categories Data Mining & Warehousing
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