When set to true, this property ensures that database-wide properties cannot be overridden by system-wide properties.
When this property is set to false, or not set, database-wide properties can be overridden by system-wide properties (see "Precedence of properties" in the Java DB Developer's Guide).
This property ensures that a database's environment cannot be modified by the environment in which it is booted.
This property can never be overridden by system properties.
CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY( 'derby.database.propertiesOnly','true')
This property is dynamic; if you change it while Derby is running, the change takes effect immediately. For information about dynamic changes to properties, see Dynamic and static properties.