Access to data stored in an embedded database

Access to data stored in an embedded database

The solution concerns the access to a number of data files stored in the memory of a data processing device. The device includes a privilege file (P1-P3) associated with a user type (ADM, PUBLIC, USER1, USER2), the privilege file identifying for at least one command (SEL, INS, UPD, SUP) the data fil...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MULLER PAREJA RICARDO, ABELLAN SEVILLA JORGE
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:The solution concerns the access to a number of data files stored in the memory of a data processing device. The device includes a privilege file (P1-P3) associated with a user type (ADM, PUBLIC, USER1, USER2), the privilege file identifying for at least one command (SEL, INS, UPD, SUP) the data files on which the command can be executed. A microcontroller is programmed to create, when a user accesses the data files, a set of flags from the privilege file, each flag being associated with a unique data file, the flag indicating whether or not the command can be executed on the associated file.