Tag: Tableau

Connecting Tableau to SAS Datasets via the SAS OLE DB Provider

One of the topics which generated a lot of interest during my presentation on SAS/Tableau Integration at the recent ‘TCC13’ Tableau Conference, was the idea of connecting to SAS datasets via the SAS OLE-DB Provider. While SAS themselves refused to allow such a presentation at their own customer conference…, it was unexpected as much as rewarding to find an audience of around 150 people at a Tableau conference interested in SAS connectivity!

Currently, Tibco Spotfire is the only 3rd party Data Discovery tool I’m aware of, which natively supports OLE-DB connectivity to SAS datasets. The benefit of OLE-DB is that it does not require access to SAS Server in order to connect to a SAS dataset. This is important, because often SAS datasets are stored locally or on a network share. SAS ODBC requires SAS Server connectivity, which in turn requires SAS client/server connectivity (eg SAS Integration Technologies)

A workaround is to connect to SAS datasets via OLE-DB using Excel as a ‘gateway’. Since the OLE-DB connection definition dialog is fully exposed within Excel, the connection details to the SAS dataset can be set up and tested. Then Tableau can be pointed to the Excel file, through which the SAS data can be retrieved.

Since the OLE-DB connection provides a way to automate the refresh of the SAS data from within Excel, this method can help ensure that the Tableau workbook is kept up-to-date as the underlying SAS data changes.

To follow are the steps to set up the Ole-DB connectivity.

Step 1: Define OLE-DB connection within Excel Open up a blank Excel workbook. Under the ‘Data’ menu, select the option ‘From Other Sources’ then select ‘From Data Connection Wizard’:
Step 2: Select the Base SAS Data Provider In the Data Connection Wizard, select ‘Other/Advanced’ then click Next:
Select the SAS OLE-DB Provider (9.2 or 9.3 as appropriate):
Step 3: Define Connection Properties The next step is perhaps the least intuitive. The ‘Data Link Properties’ dialog requires a connection to be defined to the SAS data set. For this to work correctly, all that is needed is the path to the folder where the SAS datasets reside. This is entered into the ‘Data Source’ property. The other options such as ‘Location’ and ‘User name’ can be ignored. Test the connection, then click OK.
Step 4: Select the desired SAS dataset to connect to
Step 5: Save the Data Connection
Step 6: Import the data	Verify that the OLE-DB is working as expected by importing the SAS dataset into Excel via the OLE-DB Provider connection which has just been defined:
Step 7: Save the Excel spreadsheet containing the SAS OLE-DB Connection
Step 8: In Tableau, Connect to the Excel File	Select ‘Connect to Data’, then select ‘Microsoft Excel’. Select ‘ Live Connection’.

When the Tableau workbook is saved, the SAS data can be refreshed by periodic refresh of the Excel connection. This can be scheduled to ensure that Tableau is retrieving the most up-to-date information from SAS.

Here is a video demonstrating the process described above (sorry, no audio):