HDB data

An HDB keeps its data in sequential data sets called containers. A new data set is created every time a request is submitted to load data into the HDB.

Saving data in small data sets rather than one monolithic table or data set makes management of the environment simpler:
  • You can start using an HDB immediately without worrying whether enough DASD space is available to hold many year's worth of data.
  • DFHSM can migrate old data, ensuring only the most recent or required data is retained online for immediate reporting, saving expensive DASD resources.
  • ABENDX37 conditions are avoided. In the event of a data set full condition, CICS PA simply closes the full data set and continues loading into a new one.
  • Individual data sets can be loaded directly into a DB2® table or CSV extract data set for further analysis.