https://datatweets.com/courses/generative-ai/vector-databases/Recent content in Vector Databases on DATATWEETSHugoenCopyright (c) 2025 DatatweetsSat, 27 Jun 2026 09:00:00 +0200https://datatweets.com/courses/generative-ai/vector-databases/lesson-1-why-vector-databases/Fri, 14 Nov 2025 09:00:00 +0200https://datatweets.com/courses/generative-ai/vector-databases/lesson-1-why-vector-databases/Comparing a query to every stored vector is fine for fifteen documents and hopeless for fifteen million. Learn what a vector database stores, why an index makes search fast, and the store-once-query-many pattern it enables.https://datatweets.com/courses/generative-ai/vector-databases/lesson-2-getting-started-with-chroma/Fri, 14 Nov 2025 09:00:00 +0200https://datatweets.com/courses/generative-ai/vector-databases/lesson-2-getting-started-with-chroma/Chroma is an open-source vector database that runs locally and free. Create a client and collection, add documents that Chroma embeds automatically, count them, and query by meaning — reading the results and understanding Chroma’s distance scores.https://datatweets.com/courses/generative-ai/vector-databases/lesson-3-metadata-and-filtering/Fri, 14 Nov 2025 09:00:00 +0200https://datatweets.com/courses/generative-ai/vector-databases/lesson-3-metadata-and-filtering/Combine semantic similarity with structured filters: attach metadata, restrict queries with where clauses, filter on document text, and switch to a PersistentClient so your vector database is saved to disk and reused across runs.https://datatweets.com/courses/generative-ai/vector-databases/lesson-4-guided-project-searchable-knowledge-base/Fri, 14 Nov 2025 09:00:00 +0200https://datatweets.com/courses/generative-ai/vector-databases/lesson-4-guided-project-searchable-knowledge-base/Tie the module together into a real product: load a FAQ dataset, store it in a persistent Chroma collection that embeds once and survives restarts, and build a search function that returns the matched question, its answer, and the distance — with metadata filtering.