Data Management Interface
DSS Database Connectivity
The DSS server was upgraded from DSS-6 to DSS-7, but the server will still create files in DSS-6. The new server will be able to identify the version of the DSS file and then read / write existing files using their current format (DSS-6 or DSS-7).
DSS Database DMI—Table Slot Import
Within DSS Database DMIs, you can now import a table slot without discarding extra rows at the bottom of the table. A new Table Slot Data option was added to the DSS dataset configuration that specifies how tables should be resized:
• If Import and Resize is selected, a DSS DMI will import paired data as before, by resizing the table to match the imported table. (This is the default and existing datasets will have this selected.)
• If Import Available is selected, a DSS DMI will expand a table to accommodate the imported table but it won’t contract a table. This will leave any extra rows that are in the table.
See Table Slot Data in Data Management Interface (DMI) for more information.
HDB Performance
The HDB Database DMI performance was improved for datasets that write a large number of slots and a small number of values for each slot. The performance improvement consists of grouping slots together when sending them across a network. Grouping is on a per-dataset basis and it is only for writing. The dataset configuration has a new checkbox that is shown when a dataset can group slots. This performance improvement is very much data dependent, but in one example with 2000 slots and 1 value per slot, the changes would reduce the database accesses from 4,000 to 1.
See HDB Datasets in Data Management Interface (DMI) for more information.
Revised: 07/09/2023