(No version information available, might be only in CVS)
OCI-Lob->erase — Erases a specified portion of the internal LOB data
Erases a specified portion of the internal LOB data starting at a specified offset . If called without parameters, it erases all LOB data.
For BLOBs, erasing means that the existing LOB value is overwritten with zero-bytes. For CLOBs, the existing LOB value is overwritten with spaces.
Returns the actual number of characters/bytes erased or FALSE in case of error.