Case Study: Denny’s achieves faster data insights with Coalesce

Denny’s Serves Up Faster Business Insights With a Fresh Approach to Data

Denny’s, the iconic breakfast restaurant chain, needed a faster and more manageable way to handle growing data demands across POS, vendor, IoT, and internal business systems. Its legacy Azure SQL Database Hyperscale environment was too slow, required too much manual SQL coding, and created unnecessary friction for the small BI team. Denny’s turned to Coalesce and Snowflake to modernize its data stack and simplify transformations.

With Coalesce as its data transformation platform, Denny’s migrated workloads from Hyperscale to Snowflake, automated documentation, reduced tech debt, and simplified JSON parsing and collaboration. The results were significant: 25 dimension tables were migrated 3x faster in 3–4 days instead of two weeks, time to propagate table changes dropped by 65%, and each team member saved 4–5 hours per week on documentation. Coalesce also made it easier to troubleshoot, share lineage, and support future AI/ML-ready data modeling.

Denny’s

Chris Elliott

Cloud Data Architect