Download CrateDB JDBC Driver

What Is a JDBC Driver?

A JDBC driver is a Java library file (.jar) that enables Java applications to communicate with a database. The JDBC is a standard interface implemented by each database with a specific driver. Drivers are typically distributed by the database vendor or as open-source projects.

Understanding the JDBC URL

The connection parameters including the database location, database name and connection method are passed to the driver using the JDBC URL. The JDBC URL is a text starting with 'jdbc:...' which combines the hostname, port, database name, and any driver-specific parameters. The exact syntax can be different for each JDBC driver.

The CrateDB JDBC Driver

CrateDB is a distributed SQL database designed for machine data and IoT analytics at scale. It combines the familiarity of SQL with the scalability of a NoSQL document store, supporting dynamic schemas and time-series data natively. CrateDB's shared-nothing architecture allows horizontal scaling without manual sharding.

The CrateDB JDBC URL

  • Required File(s): crate-jdbc-xxx.jar
  • Java Driver Class: io.crate.client.jdbc.CrateDriver
  • JDBC URL: jdbc:crate://{HOST}:{PORT}/
  • Website: CrateDB

CrateDB uses a PostgreSQL-compatible wire protocol on port 5432 by default. The CrateDB JDBC driver provides direct connectivity with full SQL support. SSL can be enabled by appending ?ssl=true to the URL for encrypted connections to secured clusters.

DbSchema and CrateDB

DbSchema connects to CrateDB using the native CrateDB JDBC driver, visualizing distributed table schemas including sharding configurations, and enabling SQL authoring for IoT and machine-data analytics workloads through the integrated editor.

DbSchema Database Designer

Test the JDBC Driver using DbSchema

Get to your first ER diagram in minutes. No account, no credit card.

1
Install DbSchema in minutes

DbSchema is free. Download the installer for Windows, macOS, or Linux and start DbSchema. No signup required.

2
Connect or open a sample

Reverse engineer an existing database or open a sample model to explore tables, relations, and indexes visually.

3
Design, document, deploy

Edit your schema, generate interactive documentation, and roll out reviewed changes across environments.

Free DbSchema Download

Explore CrateDB Visually with DbSchema

Once the JDBC driver is configured, DbSchema connects to your CrateDB database and gives you a full graphical workbench — no command-line required. Available as a free Community Edition and a full-featured PRO Edition. No registration needed to get started.

Interactive ER Diagrams

Reverse-engineer your CrateDB schema into a drag-and-drop ER diagram. Arrange tables visually, add new columns, define foreign keys, and let DbSchema generate the DDL — all without writing SQL by hand.

Interactive ER diagram for CrateDB in DbSchema

Visual Query Builder

Compose CrateDB queries by clicking on tables and columns — no SQL knowledge required. Add joins, filters, groupings, and aggregations through a point-and-click interface, then copy the generated SQL or run it directly against the live database.

Visual query builder for CrateDB in DbSchema

Relational Data Explorer

Browse CrateDB table data and follow foreign key relationships across tables in a single view. Edit cells inline, filter rows, and paginate through large datasets — all without leaving the explorer.

Relational data explorer for CrateDB in DbSchema

Schema Synchronization

Compare your CrateDB schema across development, staging, and production environments. DbSchema generates the exact ALTER statements needed to close the gap and lets you review every change before executing — reducing the risk of unintended schema drift.

Schema synchronization for CrateDB in DbSchema

SQL Editor

Write and execute CrateDB queries in the integrated SQL editor with schema-aware autocomplete, syntax highlighting, and instant result display. Run scripts, inspect execution plans, and export results to CSV or JSON from a single interface.

SQL editor for CrateDB in DbSchema

HTML Schema Documentation

Generate a static HTML site documenting every table, column, type, index, and relationship in your CrateDB schema. Share it with your team or embed it in your project wiki — no extra tooling required.

Schema documentation generator for CrateDB in DbSchema

For the full feature list and edition comparison, visit the DbSchema PRO Edition page.

Go deeper with CrateDB in DbSchema

ER diagrams, Git-based versioning, random data generator, and HTML schema docs.

CrateDB guide