Data
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What is OLAP (Online Analytical Processing)?
Online Analytical Processing (OLAP) is a category of data processing tools and technologies designed for complex querying and analysis of multidimensional data. OLAP systems enable users to interactively explore and analyze data from different perspectives and dimensions, providing insights for decision-making and business analysis. Key Concepts of OLAP Multidimensional Data Model: Dimensions: Categories or perspectives through which data is analyzed…
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What are data marts?
Data marts are subsets of a data warehouse, designed to focus on a specific business area or department. They provide a specialized repository that is optimized for the needs of particular groups within an organization, making data more accessible and relevant for specific analytical purposes. Key Concepts of Data Marts Purpose: Data marts are created to meet the specific needs…
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What is Data Warehousing?
Data Warehousing is a process of collecting, storing, and managing large volumes of data from various sources to support business decision-making and analysis. It involves the creation of a centralized repository (the data warehouse) that integrates data from different operational systems, allowing for comprehensive and efficient querying, reporting, and analysis. Key Concepts of Data Warehousing Data Warehouse: A specialized database…
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