---
title: Java Columnar SDK
pubDate: 2026-08-17T09:53:44.266Z
antora:
  editUrl: https://github.com/couchbase/docs-columnar-sdk-java/edit/release/1.0/modules/hello-world/pages/overview.adoc
  xref: xref:java-columnar-sdk:hello-world:overview.adoc[]
---

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# Java Columnar SDK

# Java Columnar SDK

The Columnar Java SDK allows you to connect to a Capella Columnar cluster from Java. For connecting to a Couchbase Server Cluster — self-managed, or Capella Operational — see our [Java Server SDK](../../../java-sdk/current/hello-world/overview.md).

  
##  Using Your Columnar Cluster

How-to guides and tutorials to help you start your development journey with Columnar and the Java SDK.

Getting Started

* [Hello Columnar — Java SDK Quickstart Guide](start-using-sdk.md)
* [Connecting to Columnar](../howtos/managing-connections.md)
* [Querying with SQL++](../howtos/sqlpp-queries-with-sdk.md)

Reference

* [API Reference](https://docs.couchbase.com/sdk-api/couchbase-columnar-java-client-1.0.0/com.couchbase.columnar.client.java/module-summary.html)
* [Client Settings](../ref/client-settings.md)
* [Error Messages](../ref/error-codes.md)
* [Glossary](../ref/glossary.md)

Deployment Docs

* [Columnar SDK Release Notes](../project-docs/columnar-sdk-release-notes.md)
* [Compatibility](../project-docs/compatibility.md)
* [Maven Coordinates](../project-docs/sdk-full-installation.md)