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Here’s a step-by-step explanation of data warehousing that you can use for your video presentation: 1. Understanding Data Warehousing A data warehouse is a centralized repository where data from different sources is integrated, transformed, and stored. It allows organizations to consolidate their data for reporting, analysis, and decision-making. The goal of a data warehouse is to provide a single, unified source of truth for data analytics. 2. Step-by-Step Process of Data Warehousing Step 1: Data Collection (Extract) Data from various sources, such as transactional databases, external files, and logs, are collected. These sources can be: Internal sources like Customer Relationship Management (CRM) systems, Enterprise Resource Planning (ERP) systems, or other enterprise applications. External sources like logs, social media feeds, or third-party data providers. This process is known as data extraction. Step 2: Data Staging (Transform) Before data is loaded into the warehouse, it is stored in a temporary s