| 摘要 |
A method for preserving access to deleted or overwritten document data within a system, wherein said document data is stored in a system filestore associated with a system database containing reference data to point to the document data within the system filestore, the method comprising the steps of: determining that a delete/overwrite command has been issued; recording the reference data prior to the deleting or updating of the reference data; inserting the recorded reference data in a set of access-preservation tables; inserting all other information connected with the before delete reference data contained within system tables into second set of access preservation tables; providing a set of combination tables to point to the deleted/overwritten document data within the filestore; identifying and storing document data deleted to a separate empty filestore; and re-inserting, updating all information preserved for the required document back into system database tables and filestore.
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