A datasource provider connects to a source of data such as a database, accesses its data, and returns the results of the access queries. When creating an RDBMS datasource, you can use the default provider or link to an external provider.
Default datasource provider
To use the default datasource provider, select default, and then enter the connection properties Driver, URL, User Name, and Password as follows:
External datasource provider
If you need to add a datasource supported by an external provider class such as
com.mysql.jdbc.jdbc2.optional.MysqlXADataSource, select External Data Source, click Add Property, and then enter the name and value of each connection property you need to configure. Following is an example datasource for an external datasource provider.