How to set custom connection properties on DataSource in Spring Boot 1.3.x with default Tomcat connection pool

Question

I need to set some specific Oracle JDBC connection properties in order to speed up batch INSERTs (defaultBatchValue) and mass SELECTs

Answer 1

Setting the pools connectionProperties should work. Those will be passed to the JDBC driver. Add this to application.properties:

spring.datasource.connectionProperties: defaultRowPrefetch=1000;defaultBatchValue=1000

Edit (some background information):

Note also that you can configure any of the DataSource implementation specific properties via spring.datasource.*: refer to the documentation of the connection pool implementation you are using for more details.

source: spring-boot documentation