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 .