A data warehouse, also known as an enterprise data warehouse (EDW), is a system that stores and analyzes data from multiple sources. Data warehouses are used for reporting and data analysis, and are considered a core component of business intelligence. Case study: Trends, an affordable fashion & lifestyle retailer which operates more than 2,300 stores in over 1,100 towns and cities across India. They might have goods stored in different warehouse, They might have enterprise application to track the goods in warehouse and analyze them for improving their business. A data warehouse has four main components: refer above diagram Central database: ETL (extract, transform, load) tools Metadata (Data sources) Access tools Some examples of data warehouses include: Snowflake Google BigQuery Amazon Redshift Azure Synapse Analytics IBM Db2 Warehouse Firebolt Benefits of Data Warehouse: Understand business trends and make better forecasting decisions . Data Warehouses ar...