4 ms·
This indeed helps but only partially. Will still leak data in the way the DB is fragmented. E.g. if you have a text document with 1 row per paragraph, fragment
by Const-me 8y ago
This indeed helps but only partially. Will still leak data in the way the DB is fragmented.
E.g. if you have a text document with 1 row per paragraph, fragmentation will reveal where it was edited, and what kinds or edits were made. You insert a bunch of images into the document, and the physical order of pages will reveal in which order they were inserted, even if you re-arrange them afterwards.
It's possible to workaround by careful programming, but still, very easy to screw up and leak data.
OTOH, with zipped XMLs people normally use instead, you overwrite the complete file each time, it's not fragmented and hopefully doesn't contain any extra info.