|Job Type||JDBC Ingestion Enabled only||JDBC Ingestion and Caching Enabled|
|transformation job||Data is retrieved from the source and stored in a temporary backend location for use in sampling.||Data is retrieved from the source for the job and refreshes the cache where applicable.|
|sampling job||See previous.|
Cache is first checked for valid data objects. Outdated objects are retrieved from the data source.
Retrieved data refreshes the cache.
As needed you can force an override of the cache when executing the sample. Data is collected from the source. See Samples Panel.