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# REGISTER OVER IN LUMA: luma.com/uu2y26d3

# Follow our new Calendar in Luma: luma.com/mug-belgrade

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## Join us for our 10th MongoDB User Group Belgrade Event! 🚀

​This time, we'll explore advanced MongoDB schema design patterns and common anti-patterns that affect application performance and scalability.

​Topics we'll cover:

  • ​Approximation Pattern
  • ​Schema Versioning Pattern
  • ​Massive Number of Collections
  • ​Unnecessary Indexes
  • ​Data Normalization
  • ​Case Sensitivity

​🎁 Prizes for the first three participants to achieve a perfect score on the final MongoDB Skill Badge test!
​💡 No laptop required! This is a talk-style session, and you can complete the Skill Badge test directly on your phone.

## ​Agenda 📆

  • ​18:00–18:15 — Arrival & Networking
  • ​18:15–18:30 — Welcome & Introduction
  • ​18:30–19:15 — Advanced Schema Design Patterns & Anti-Patterns
  • ​19:15–19:30 — MongoDB Skill Badge Test
  • ​19:30–20:00 — Food, Drinks, Networking & Swag

## ​MongoDB Skill Badge 🍃

​Test your knowledge with the official Advanced Schema Patterns & Anti-Patterns Skill Check and earn a digital badge!
​Looking forward to seeing familiar faces and meeting new ones.

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