Case Study


The key to optimizing the availability of stock

Zalando has implemented the analytic in-memory database Exasol as a fundamental part of the company’s data warehouse system in order to support the order process and to ensure that Zalando’s customers benefit from optimal availability of products and apparel.


By implementing the in-memory database, Zalando can now benefit from a higher degree of flexibility. Exasol offers a clear performance advantage, too.

Eric von Czapiewski, Head of Business Intelligence at Zalando SE
Retail & E-Commerce
 Fraud detection
Financial reporting
Operational performance
BI Tool
IBM Unica
SAP Business Objects
ETL Tool
LUA Scripts
Oracle Data Integrator
Pentaho Data Integration

The Challenge

  • Effectively managing the increase in data volumes
  • Easy integration into existing infrastructures and applications/ low-maintenance
  • Information on product availability has to be retrievable in real time

The solution

  • Good price/performance ratio
  • Exasol fits in to Zalando’s architecture and connects effortlessly to existing front-end BI tools
  • Exasol could be integrated into Zalando’s data warehouse as an analytic layer for the long-run

Proven benefits

  • Short analysis run-times
  • Freeing-up of resources in various departments, such as purchasing, auditing or logistics
  • Designing the repeat order process as efficiently as possible along with simplifying the company’s CRM