Generic to registries, handle the data source connections, including usernames and passwords needed to open these connections
rapOpenDbConnection(registryName, dbType = "mysql")
A named list of con and drv representing the db connection handle and driver, respectively.
String id used for the registry in global configuration file from which information on the database connection is provided
String providing type of data source, one of "mysql" and "mssql". Defaults to "mysql"