title: Querying database of Windchill using SQL
body: <p>Many vendors such as Microsoft with Sharepoint and Dynamics have made it impossible to access database tables directly in newer versions as they convert to Software as Service (SAS) offerings.</p>
  
  <p>I am working with PTC Windchill and have developed extensive Oracle SQL Layer ETL processing. Is this a future proof practice within the context of this product line? Or in the future will I be required to work through some sort of DAL. If so, is there a recommended practice?</p>
  
  <p>The information available from Windchill for Cloud appear vague and mostly suggesting to me virtualizion at the infrastructure layer, suggesting I would be able to query at the database layer for many years to come. Any confirmation, pointers or feedback would be  appreciated.</p>