LangChain integration for SAP HANA Cloud
About this project
Integrates LangChain with SAP HANA Cloud to make use of vector search, knowledge graph, and further in-database capabilities as part of LLM-driven applications.
Requirements and Setup
Prerequisites
- Python Environment: Ensure you have Python 3.10 or higher installed.
- SAP HANA Cloud: Access to a running SAP HANA Cloud instance.
Installation
Install the LangChain SAP HANA Cloud integration package using pip:
pip install -U langchain-hana
Vectorstore
The HanaDB class is used to connect to SAP HANA Cloud Vector Engine.
SAP HANA Cloud Vector Engine is a vector store fully integrated into the SAP HANA Cloud database.
See a usage example.
from langchain_hana import HanaDB
Important: You can use any embedding class that inherits from
langchain_core.embeddings.Embeddings—includingHanaInternalEmbeddings, which runs SAP HANA’sVECTOR_EMBEDDING()function internally. See SAP Help for more details.
Self Query Retriever
SAP HANA Cloud Vector Engine also provides a Self Query Retriever implementation using the HanaTranslator Class.
See a usage example.
from langchain_hana import HanaTranslator
Graph
SAP HANA Cloud Knowledge Graph Engine provides support to utilise knowledge graphs through the HanaRdfGraph Class.
See a usage example.
from langchain_hana import HanaRdfGraph
Chains
A SparqlQAChain is also provided which can be used with HanaRdfGraph for SPARQL-QA tasks.
See a usage example.
from langchain_hana import HanaSparqlQAChain
Documentation
For a detailed guide on using the package, please refer to the examples here.
Support, Feedback, Contributing
This project is open to feature requests/suggestions, bug reports etc. via GitHub issues. Contribution and feedback are encouraged and always welcome. For more information about how to contribute, the project structure, as well as additional contribution information, see our Contribution Guidelines.
Security / Disclosure
If you find any bug that may be a security problem, please follow our instructions at in our security policy on how to report it. Please do not create GitHub issues for security-related doubts or problems.
Code of Conduct
We as members, contributors, and leaders pledge to make participation in our community a harassment-free experience for everyone. By participating in this project, you agree to abide by its Code of Conduct at all times.
Licensing
Copyright 2025 SAP SE or an SAP affiliate company and langchain-integration-for-sap-hana-cloud contributors. Please see our LICENSE for copyright and license information. Detailed information including third-party components and their licensing/copyright information is available via the REUSE tool.
1 maintainer
Metadata
1 maintainer
Release files for langchain-hana 1.2.0
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | |
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| langchain_hana-1.2.0.tar.gz | 36.6 kB | Without provenance | Details |
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| File | Interpreter | ABI | Platform | Reset |
|---|---|---|---|---|
| langchain_hana-1.2.0-py3-none-any.whl | Python 3 | none | any | Details |
Total release size: 83.2 kB
Release files / langchain_hana-1.2.0.tar.gz
| Download URL | langchain_hana-1.2.0.tar.gz |
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| Size | 36.6 kB |
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| Download URL | langchain_hana-1.2.0-py3-none-any.whl |
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| Size | 46.6 kB |
| Tags | Python 3 |
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