JDBC drivers

This page describes the JDBC drivers that Spanner supports for GoogleSQL-dialect databases and PostgreSQL-dialect databases. You can use these drivers to connect to Spanner from Java applications. Spanner supports the following JDBC drivers:

• The Spanner JDBC driver, which is an open-source JDBC driver that is written, provided, and supported by Google, similar to the Cloud Client Libraries. This is the recommended JDBC driver for Spanner, especially for the GoogleSQL dialect. You can also use it to connect to PostgreSQL-dialect databases.
• The PostgreSQL JDBC driver in combination with PGAdapter. This driver only supports PostgreSQL-dialect databases.

	Spanner JDBC driver	PostgreSQL JDBC driver
Download	Maven Central	Maven Central
Written by	Google	PostgreSQL
Support	Google	Google
Open source	Yes; Apache license	Yes; BSD 2-Clause

For information about the Spanner JDBC driver, see Spanner JDBC driver FAQ and How to use the Spanner JDBC driver.

For information about the PostgreSQL JDBC driver, see Connect JDBC to a PostgreSQL-dialect database.