diff --git a/src/main/resources/spring/business-config.xml b/src/main/resources/spring/business-config.xml
index 7117ca2..5e9dc68 100644
--- a/src/main/resources/spring/business-config.xml
+++ b/src/main/resources/spring/business-config.xml
@@ -39,6 +39,11 @@
<property name="jpaVendorAdapter">
<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"
p:database="${jpa.database}" p:showSql="${jpa.showSql}"/>
+ <!-- the 'database' parameter refers to the database dialect being used.
+ By default, Hibernate will use a 'HSQL' dialect because 'jpa.database' has been set to 'HSQL'
+ inside file spring/data-access.properties
+
+ -->
</property>
<!-- gDickens: BOTH Persistence Unit and Packages to Scan are NOT compatible, persistenceUnit will win -->
<property name="persistenceUnitName" value="petclinic"/>
