📚 Knowledge Garden

This is my long-term developer knowledge garden with my own summaries, explanations, examples, and notes.

⚠️ Copyright and exam safety policy: This section must only contain my own wording and derived learning notes. No copyrighted book text, no screenshots from commercial material, and no official IHK exam questions.

IHK

• IHK SQL: JOINs
  • Difficulty: Intermediate
  • Status: Learning
  • Last reviewed: 2026-07-15
  • Tags: sql, joins
• IHK SQL: SELECT und WHERE
  • Difficulty: Beginner
  • Status: Learning
  • Last reviewed: 2026-07-15
  • Tags: sql, select, where
• IHK UML: Klassendiagramm
  • Difficulty: Beginner
  • Status: Learning
  • Last reviewed: 2026-07-15
  • Tags: uml, klassendiagramm
• IHK: Algorithmen und Schleifen
  • Difficulty: Intermediate
  • Status: Learning
  • Last reviewed: 2026-07-15
  • Tags: algorithmen, schleifen
• IHK: Testverfahren
  • Difficulty: Intermediate
  • Status: Learning
  • Last reviewed: 2026-07-15
  • Tags: testverfahren, qa
• Kontrollstrukturen
  • Difficulty: Beginner
  • Status: Completed
  • Last reviewed: 2026-07-18
  • Tags: python, algorithmen, kontrollstrukturen