https://ivanluminaria.com/en/tags/grain/Recent content in Grain on Ivan LuminariaHugoenTue, 21 Oct 2025 08:03:00 +0100https://ivanluminaria.com/en/posts/data-warehouse/fatto-grana-sbagliata/Tue, 21 Oct 2025 08:03:00 +0100https://ivanluminaria.com/en/posts/data-warehouse/fatto-grana-sbagliata/<p>The meeting had started well. The sales director of an industrial distribution company — around sixty million in revenue, three thousand active customers, a catalog of twelve thousand SKUs — had opened the new data warehouse presentation with a smile. The numbers matched, the dashboards were polished, the monthly totals by agent and territory reconciled with accounting.</p> <p>Then someone asked the wrong question. Or rather, the right one.</p> <p><em>&ldquo;Can I see what customer Bianchi purchased in March, line by line, product by product?&rdquo;</em></p>