Customer Story

Bespoke SQL training

The Operating Applications division at Denner had the task of improving SQL skills within the team. It opted for a bespoke training course with Trivadis.

In Short


An SQL training course tailored to different levels of knowledge.


Bespoke training course geared towards company-specific issues.


The team is able to complete SQLspecific work with the best possible results.

Our solution

Trivadis put together a special programme for the three-day training course at Denner’s headquarters in Zurich and geared the agenda around the requirements set out by the department. During the course, the experienced instructor addressed the company’s specific issues on an in-depth basis and responded to the participants’ individual needs. The course covered topics including advanced knowledge on operating activities related to indexes and backup-restore as well as basic skills linked to the topic of SQL service integration services (SSIS). The extensive theory-based programme was put together by combining various courses and then enhanced with practical demonstrations, field reports and Q&A sessions to maximise the benefits for participants. The training course, which was attended by 12 participants, was a success.

Because the training was tailored completely to our requirements, the members of the Operating Applications team are now once again back on an equal footing in terms of the knowledge. The cooperation with Trivadis was very smooth and easy.

Hansjörg Trösch, Head of the Operating Applications Team, Denner

Learning from practical examples

The existing level of knowledge among the participants was very varied. The training course ensured that every member of the team now has the same expertise in the field of SQL and also provided advanced knowledge on the topic of indexes. At the same time, the instructor was happy to respond to any questions that arose during the course and provided some practical examples. This enabled the knowledge gained to be applied directly. Trivadis created a bespoke training course for Denner, designed to ensure that any SQLspecific work that arises can now be completed within the team with the best possible results. The training course’s organisation ran seamlessly and the feedback from participants was very positive.


Denner is Switzerland’s leading chain of discount supermarkets. At the 810 or so Denner stores, customers enjoy a balanced array of fresh food, day-to-day items and weekly special offers. In 2019, Denner employed 5,285 people spread across 551 branches in Switzerland and served over 106.5 million customers across the entire network (including Denner Satellite and Denner Express stores).

Technology used

  • SQL-Server

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