Overview
- V$DISK_UNDO_USAGE was added in ALTIBASE HDB 5.5.1.
- This performance view allows users to check the usage of the undo tablespace.
Disk tablespace usage query
Disk tablespace usage query
Example of output
Related bug
BUG-39985 V$DISK_UNDO_USAGE calculation error correction
The REUSABLE_EXT_CNT column of V$DISK_UNDO_USAGE defines the reusable size within the undo tablespace.
An undo tablespace pool phenomenon occurred, but the REUSABLE_EXT_CNT column has an error indicating that there is reusable space, so it has been improved.
This bug is reflected in the version below.
- ALTIBASE HDB version 6.1.1.4.9
- ALTIBASE HDB version 6.3.1