Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2006-10-24
2006-10-24
Gaffin, Jeffrey (Department: 2165)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
07127462
ABSTRACT:
A database management system is provided for protecting data from being malicious update or deleted. The system is arranged to hold as a table attribute an insert-only attribute and a row deletion prohibition period, and as an access right attribute a row insertion date and time holding column name and to specify a row insertion date and time when a row was inserted, for disabling said date and time data. When requesting a table data update or a row deletion, the table attribute and the row insertion date and time are checked for preventing the malicious update and deletion.
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Hiraga Shigeto
Itaya Takashi
Gaffin Jeffrey
Hicks Michael J.
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