This n8n workflow demonstrates how to merge, enrich, and analyze data from multiple sources using the Merge node, akin to SQL joins. It is triggered manually and showcases different merging techniques such as combining datasets, enriching items, and creating supergroups. The workflow includes examples with ingredient lists and band members, illustrating practical uses like inventory management, recipe adjustments, or data consolidation. Key nodes include code nodes for data generation, merge nodes for different types of joins, and sticky notes for explanations. This setup is valuable for automating complex data handling tasks in various business or creative scenarios.