All SQL store extensions, if the specific datasource name is not configured should fall back to the default one.
Each SQL store implementation currently must have at least one mandatory configuration
parameter edc.datasource.<entity>.name and then in case additional parameters as url, user, password and so on.
This is powerful for fine-grained configuration and deployment. For simpler cases and scenario all the stores should default to a common datasource name, that will be easier to configure.
All the SQL store extensions will default to a common datasource name defined
in DataSourceRegistry#DEFAULT_DATASOURCE (default)
and then users can configure a single datasource like this:
edc.datasource.default.user=
edc.datasource.default.password=
edc.datasource.default.url=
...