The DBMS_VECTOR, DBMS_VECTOR_CHAIN, and DBMS_HYBRID_VECTOR PL/SQL APIs are available to support Oracle AI Vector Search capabilities.

• DBMS_VECTOR
  The DBMS_VECTOR package simplifies common operations with Oracle AI Vector Search, such as extracting chunks or embeddings from user data, generating text for a given prompt or an image, creating a vector index, or reporting on index accuracy.
• DBMS_VECTOR_CHAIN
  The DBMS_VECTOR_CHAIN package enables advanced operations with Oracle AI Vector Search, such as chunking and embedding data along with text generation and summarization capabilities. It is more suitable for text processing with similarity search and hybrid search, using functionality that can be pipelined together for an end-to-end search.
• DBMS_HYBRID_VECTOR
  The DBMS_HYBRID_VECTOR package contains a JSON-based query API SEARCH, which lets you query against hybrid vector indexes.