Download Google AlloyDB JDBC Driver

Download the Google AlloyDB JDBC driver, copy the JDBC URL into DbSchema, and start designing schemas with ER diagrams — free Community Edition.

About the Google AlloyDB JDBC driver

A JDBC driver is a Java .jar library that lets applications connect to Google AlloyDB. DbSchema uses JDBC to reverse engineer schemas, run SQL, and generate documentation. Driver files are usually published by the database vendor or an open-source project.

JDBC URL format

Host, port, database name, and SSL options are passed in a URL starting with jdbc:. Each Google AlloyDB driver uses its own syntax — see the connection details below.

The Google AlloyDB JDBC driver

Google AlloyDB is a fully managed, PostgreSQL-compatible database service on Google Cloud, combining the familiarity of PostgreSQL with Google's advanced storage and computing technologies. It is designed for demanding transactional and analytical workloads, offering up to 4× faster transactional throughput and 100× faster analytical queries than standard PostgreSQL. AlloyDB includes a built-in columnar engine and supports the pgvector extension for AI-powered similarity search.

The Google AlloyDB JDBC URL

• Required File(s): postgresql-xxx.jar (PostgreSQL JDBC Driver)
• Java Driver Class: org.postgresql.Driver
• JDBC URL: jdbc:postgresql://{HOST}:{PORT}/{DB}
• Website: Google AlloyDB

AlloyDB uses standard PostgreSQL port 5432. Connect via the AlloyDB Auth Proxy for secure access outside your VPC, or use Private Service Connect for VPC-internal connectivity. The standard PostgreSQL JDBC driver is fully compatible with AlloyDB's PostgreSQL-compatible interface.

DbSchema and Google AlloyDB

DbSchema connects to Google AlloyDB using the standard PostgreSQL JDBC driver, visualizing AlloyDB's PostgreSQL-compatible schemas including columnar engine acceleration and pgvector extension tables, supporting both OLTP design and analytical workload optimization.