The UDS online utility enables some functions to be executed online (i.e. during DBH operation) which are otherwise in some cases implemented in a similar manner by other utility routines.
You can compress data offline as follows:
with BPGSIZE (see the "Creation and Restructuring" manual) or
by unloading and reloading the data using BOUTLOAD/BINILOAD (see the "Creation and Restructuring" manual) or
by creating new tables with BREORG (see the "Recovery, Information and Reorganization" manual)
The UDS online utility enables you to relocate and compress data records and small tables specifically in individual realms during live operation.
For distributable lists you can relocate level 0 pages to another involved realm during ongoing operation. During ongoing operation you can change the realm in which free space is searched for for additional level 0 pages which are required (preferred realm).
You can also use the UDS online utility to enable the comparable functions SET and RESET of the BMODTT utility routine (see the "Recovery, Information and Reorganization" manual) during live operation.
The UDS online utility also enables you to update PPPs to the most recent values during ongoing operation.
A detailed description of the UDS online utility is provided in the "Recovery, Information and Reorganization" manual.