Couchbase Server | Couchbase Docs

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class="nav-link" href="sdk.html"> Couchbase SDKs </a> </li> <li class="nav-item "> <a class="nav-link" href="columnar-sdk.html"> Columnar SDKs </a> </li> </ul> </div> <div class="primary-action"> <div class="navbar-item search" id="search"> <input class="dataLayer query" type="text" placeholder="Search Docs"><i class="fas fa-search"></i> </div> <a class="btn btn-primary btn-grey-reverse" onclick="(window.dataLayer=window.dataLayer||[]).push({'event':'customEvent', 'category':'CTA', 'action':'Button Click', 'label':'Download'});" href="https://www.couchbase.com/downloads"> Downloads <i class="far fa-arrow-to-bottom fa-fw"></i> </a> <a href="https://cloud.couchbase.com/sign-up" class="btn btn-primary" onclick="(window.dataLayer=window.dataLayer||[]).push({'event':'customEvent', 'category':'CTA', 'action':'Button Click', 'label':'Free Trial'});" > Try Free <i class="far fa-cloud fa-fw"></i> </a> </div> </nav> </div> </div> </header> <div class="body container"> <aside class="nav left-sidebar"> <div class="nav-container"> <a href="#" class="menu-expand-toggle"><span>Navigation</span><i class="fas fa-times-circle"></i><i class="fas fa-chevron-circle-left"></i></a> </div> </aside> <main class="article" data-ceiling="topbar"> <article class="doc landing-page-doc"> <h1 class="sect0">Couchbase Server</h1> <div class="sect1"> <h2></h2> <div class="sectionbody"> <div class="paragraph"> <p>Couchbase is the modern database for enterprise applications.</p> </div> <div class="paragraph"> <p>Couchbase Server is an open source, distributed, JSON document database. It exposes a scale-out, key-value store with managed cache for sub-millisecond data operations, purpose-built indexers for efficient queries, and a powerful query engine for executing SQL-like queries. For mobile and Internet of Things environments Couchbase also runs natively on-device and manages synchronization to the server.</p> </div> <div class="listingblock"> <div class="content"> <pre>try { final QueryResult result = cluster.query("SELECT * FROM `travel-sample`.inventory.airline LIMIT 100", queryOptions().metrics(true)); for (JsonObject row : result.rowsAsObject()) { System.out.println("Found row: " + row); } System.out.println("Reported execution time: " + result.metaData().metrics().get().executionTime()); } catch (CouchbaseException ex) { ex.printStackTrace(); }</pre> </div> </div> </div> </div> <div class="sect1"> <h2>Get Started</h2> <div class="sectionbody"> <div class="card-row two-column-row"> <div class="sect5 column"> <h6></h6> <div class="paragraph content"> <div class="title">New to Couchbase</div> <p>Read the Getting Started guide for step-by-step instructions to create and connect to the database and run your first query.</p> </div> <div class="paragraph"> <p><a href="../server/current/getting-started/start-here.html" class="xref page">Get Started</a></p> </div> </div> <div class="sect5 column"> <h6></h6> <div class="paragraph content"> <div class="title">Upgrading to v7.x</div> <p>If you are an existing Couchbase user looking for information to upgrade to Couchbase Server 7.x and use collections and scopes, see <a href="../server/current/install/migrating-application-data.html" class="xref page">Upgrade and migrate your data to v7.x</a>.</p> </div> </div> <div class="sect5 column"> <h6></h6> <div class="paragraph content"> <div class="title">Migrating to Couchbase</div> <p>Find guidance and considerations when migrating from a different database to Couchbase through this <a href="https://blog.couchbase.com/moving-from-sql-server-to-couchbase-part-1-data-modeling/">blog series</a>.</p> </div> </div> <div class="sect5 column"> <h6></h6> <div class="paragraph content"> <div class="title">Explore Tutorials</div> <p>Explore Couchbase <a href="https://developer.couchbase.com/tutorials/">Tutorials</a> to learn how to build and operate apps using Couchbase.</p> </div> </div> </div> <div class="sect5 column"> <h6></h6> </div> </div> </div> <div class="sect1"> <h2>Develop Using Couchbase</h2> <div class="sectionbody"> <div class="card-row two-column-row"> <div class="ulist column"> <div class="title">Build your first sample app</div> <ul> <li> <p><a href="../server/current/guides/kv-operations.html" class="xref page">Developer’s Intro</a></p> </li> <li> <p><a href="../server/current/learn/data/document-data-model.html" class="xref page">Data Model</a></p> </li> <li> <p><a href="../java-sdk/current/hello-world/start-using-sdk.html" class="xref page">Hello World Using SDKs</a></p> </li> <li> <p><a href="../java-sdk/current/howtos/kv-operations.html" class="xref page">CRUD Using SDKs</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Data Service</div> <ul> <li> <p><a href="../server/current/learn/services-and-indexes/services/data-service.html" class="xref page">Data Service</a></p> </li> <li> <p><a href="../server/current/learn/data/scopes-and-collections.html" class="xref page">Scopes and Collections</a></p> </li> <li> <p><a href="../server/current/learn/data/extended-attributes-fundamentals.html" class="xref page">Extended Attributes (XATTRs)</a></p> </li> <li> <p><a href="../java-sdk/current/howtos/kv-operations.html" class="xref page">CRUD using Java SDK</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Querying Data</div> <ul> <li> <p><a href="../server/current/n1ql/query.html" class="xref page">Query Service</a></p> </li> <li> <p><a href="../server/current/learn/services-and-indexes/indexes/indexing-and-query-perf.html" class="xref page">Indexes and Query Performance</a></p> </li> <li> <p><a href="../server/current/n1ql/n1ql-language-reference/index.html" class="xref page">N1QL Language Reference</a></p> </li> <li> <p><a href="../java-sdk/current/howtos/n1ql-queries-with-sdk.html" class="xref page">Query Using Java SDK</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Full-text Search</div> <ul> <li> <p><a href="../server/current/search/search.html" class="xref page">Search Service</a></p> </li> <li> <p><a href="#server:fts:fts-analyzers.adoc" class="xref unresolved">Understanding Analyzers</a></p> </li> <li> <p><a href="#server:fts:fts.adoc" class="xref unresolved">Creating Full Text Indexes</a></p> </li> <li> <p><a href="../java-sdk/current/howtos/full-text-searching-with-sdk.html" class="xref page">Search Using Java SDK</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Choosing the right index</div> <ul> <li> <p><a href="../server/current/learn/services-and-indexes/services/index-service.html" class="xref page">Index Service</a></p> </li> <li> <p><a href="../server/current/learn/services-and-indexes/indexes/index-lifecycle.html" class="xref page">Index Lifecyle</a></p> </li> <li> <p><a href="../server/current/learn/services-and-indexes/indexes/global-secondary-indexes.html" class="xref page">Using Indexes</a></p> </li> <li> <p><a href="../server/current/rest-api/rest-index-service.html" class="xref page">Index Service REST API</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Analytics</div> <ul> <li> <p><a href="../server/current/learn/services-and-indexes/services/analytics-service.html" class="xref page">Analytics Service</a></p> </li> <li> <p><a href="../server/current/analytics/1_intro.html" class="xref page">N1QL for Analytics</a></p> </li> <li> <p><a href="../server/current/analytics/primer-beer.html" class="xref page">Tutorial</a></p> </li> <li> <p><a href="../java-sdk/current/howtos/analytics-using-sdk.html" class="xref page">Analytics Using Java SDK</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Eventing</div> <ul> <li> <p><a href="../server/current/eventing/eventing-overview.html" class="xref page">Eventing Service</a></p> </li> <li> <p><a href="../server/current/eventing/eventing-language-constructs.html" class="xref page">Language Constructs</a></p> </li> <li> <p><a href="../server/current/eventing/eventing-examples.html" class="xref page">Examples: Using the Eventing Service</a></p> </li> <li> <p><a href="../server/current/eventing/eventing-api.html" class="xref page">Eventing REST API</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Transactions</div> <ul> <li> <p><a href="../server/current/learn/data/transactions.html" class="xref page">Transactions</a></p> </li> <li> <p><a href="../server/current/learn/data/durability.html" class="xref page">Durability</a></p> </li> <li> <p><a href="../java-sdk/current/howtos/distributed-acid-transactions-from-the-sdk.html" class="xref page">Java Transaction Library</a></p> </li> <li> <p><a href="../server/current/n1ql/n1ql-language-reference/transactions.html" class="xref page">N1QL Support for Transactions</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Replication</div> <ul> <li> <p><a href="../server/current/learn/clusters-and-availability/replication-architecture.html" class="xref page">Cross Data Center Replication(XDCR) Architecture</a></p> </li> <li> <p><a href="../server/current/learn/clusters-and-availability/xdcr-overview.html" class="xref page">XDCR Cloud Deployment</a></p> </li> <li> <p><a href="../server/current/manage/manage-xdcr/xdcr-management-overview.html" class="xref page">Manage XDCR</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Backup and Restore</div> <ul> <li> <p><a href="../server/current/learn/services-and-indexes/services/backup-service.html" class="xref page">Backup Service</a></p> </li> <li> <p><a href="../server/current/manage/manage-backup-and-restore/manage-backup-and-restore.html" class="xref page">Manage Backup and Restore</a></p> </li> <li> <p><a href="../server/current/rest-api/backup-rest-api.html" class="xref page">Backup Service REST API</a></p> </li> </ul> </div> </div> <div class="sect5 column"> <h6></h6> </div> </div> </div> <div class="sect1"> <h2>Administration</h2> <div class="sectionbody"> <div class="card-row two-column-row"> <div class="ulist column"> <div class="title">Buckets, Memory, and Storage</div> <ul> <li> <p><a href="../server/current/learn/buckets-memory-and-storage/vbuckets.html" class="xref page">Database Sharding using vBuckets</a></p> </li> <li> <p><a href="../server/current/learn/buckets-memory-and-storage/memory-and-storage.html" class="xref page">Memory and Storage</a></p> </li> <li> <p><a href="../server/current/learn/buckets-memory-and-storage/compression.html" class="xref page">Compression</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Cluster Management</div> <ul> <li> <p><a href="../server/current/manage/management-overview.html" class="xref page">Overview</a></p> </li> <li> <p><a href="../server/current/manage/manage-nodes/node-management-overview.html" class="xref page">Manage Nodes and Clusters</a></p> </li> <li> <p><a href="../server/current/manage/manage-buckets/bucket-management-overview.html" class="xref page">Manage Buckets</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Security</div> <ul> <li> <p><a href="../server/current/learn/security/security-overview.html" class="xref page">Security Overview</a></p> </li> <li> <p><a href="../server/current/learn/security/authentication.html" class="xref page">Authentication</a></p> </li> <li> <p><a href="../server/current/manage/manage-security/manage-certificates.html" class="xref page">Manage Certificates</a></p> </li> <li> <p><a href="../server/current/learn/security/authorization-overview.html" class="xref page">Authorization</a></p> </li> <li> <p><a href="../server/current/manage/manage-security/manage-users-and-roles.html" class="xref page">Manage Users, Groups, and Roles</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Monitoring and Logging</div> <ul> <li> <p><a href="../server/current/manage/monitor/monitor-intro.html" class="xref page">Monitoring</a></p> </li> <li> <p><a href="../server/current/manage/manage-logging/manage-logging.html" class="xref page">Logging</a></p> </li> <li> <p><a href="../server/current/manage/manage-settings/manage-settings.html" class="xref page">Settings</a></p> </li> <li> <p><a href="../server/current/manage/troubleshoot/troubleshoot.html" class="xref page">Troubleshoot</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Installation</div> <ul> <li> <p><a href="../server/current/install/get-started.html" class="xref page">Deployment Options</a></p> </li> <li> <p><a href="../server/current/install/install-production-deployment.html" class="xref page">Deployment Guidelines</a></p> </li> <li> <p><a href="../server/current/install/install-intro.html" class="xref page">Installation</a></p> </li> <li> <p><a href="../server/current/install/upgrade.html" class="xref page">Upgrading Couchbase Server</a></p> </li> <li> <p><a href="../server/current/install/install-uninstalling.html" class="xref page">Uninstall</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Migrating to v7.x</div> <ul> <li> <p><a href="../server/current/install/migrating-application-data.html" class="xref page">Migrating to a collection-based data model</a></p> </li> <li> <p><a href="https://blog.couchbase.com/moving-from-sql-server-to-couchbase-part-1-data-modeling/">Migrating to Couchbase</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">Couchbase Server Tools</div> <ul> <li> <p><a href="../server/current/cli/cli-intro.html" class="xref page">Couchbase CLI</a></p> </li> <li> <p><a href="../server/current/tools/query-workbench.html" class="xref page">Query Workbench</a></p> </li> <li> <p><a href="../server/current/n1ql/n1ql-intro/cbq.html" class="xref page">cbq - the command line shell for N1QL</a></p> </li> <li> <p><a href="../server/current/backup-restore/enterprise-backup-restore.html" class="xref page">Backups using <code>cbbackupmgr</code></a></p> </li> <li> <p><a href="../server/current/tools/cbimport.html" class="xref page">Data Import using cbimport</a></p> </li> <li> <p><a href="https://couchbase.sh">Couchbase Shell (Beta)</a></p> </li> </ul> </div> <div class="ulist column"> <div class="title">References</div> <ul> <li> <p><a href="../server/current/rest-api/rest-intro.html" class="xref page">REST API Reference</a></p> </li> <li> <p><a href="../server/current/metrics-reference/metrics-reference.html" class="xref page">Metrics Reference</a></p> </li> <li> <p><a href="#xdcr-reference:xdcr-reference-intro.adoc" class="xref unresolved">XDCR Reference</a></p> </li> <li> <p><a href="#audit-event-reference:audit-event-reference.adoc" class="xref unresolved">Audit Events Reference</a></p> </li> <li> <p><a href="#rebalance-reference:rebalance-reference.adoc" class="xref unresolved">Rebalance Reference</a></p> </li> </ul> </div> </div> <div class="sect5 column"> <h6></h6> </div> </div> </div> <div class="sect1"> <h2>Product Docs</h2> <div class="sectionbody"> <div class="card-row three-column-row"> <div class="sect5 column"> <h6></h6> <div class="paragraph content"> <div class="title">Release Notes</div> <p>Find information about platform support changes, deprecation notifications, notable improvements, and fixed and known issues in a release.</p> </div> <div class="paragraph"> <p><a href="../server/current/release-notes/relnotes.html" class="xref page">Release Notes</a></p> </div> </div> <div class="sect5 column"> <h6></h6> <div class="paragraph content"> <div class="title">What’s New</div> <p>Find information about new features and enhancements in a release.</p> </div> <div class="paragraph"> <p><a href="../server/current/introduction/whats-new.html" class="xref page">What’s new</a></p> </div> </div> <div class="sect5 column"> <h6></h6> <div class="paragraph content"> <div class="title">Editions</div> <p>Couchbase Server comes in two editions: Enterprise Edition and Community Edition. 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