#### Vector database {: #vector-database data-category=gen-ai }
A collection of chunks of unstructured text and corresponding text embeddings for each chunk, indexed for easy retrieval. Vector databases can optionally be used to ground the LLM responses to specific information and can be assigned to an LLM blueprint to leverage during a [RAG](#retrieval-augmented-generation-rag) operation. The creation of a vector database occurs when a collection of unstructured text is broken up into chunks, embeddings are generated for each chunk, and both the chunks and embeddings are stored in a database and are available for retrieval by some service. Updating the vector database is the action of adding (or removing) content to (or from) the originally created vector database. This means adding new chunks of text (or removing) and creating new embeddings (or removing) in the vector database.