GIGA-TMS TR4020, Руководство пользователя

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C.2. Database organization and management
The TR40xx keeps the Time and Attendance data in its internal non-volatile database. Understanding
internal database organization and logic is crucial to the effective Terminal management.
C.2.1. “New” and “old” data
The TR40xx distinguishes between the “new” and “old” data. New data is the data that was added to the
Time and Attendance database after the last time the database contents has been saved to disk or
uploaded to the PC via online connection. Old data is the data that has been saved to the disk or uploaded
to the PC at least once in the past. By default, the old data is never saved or uploaded twice- it is just kept in
the Terminal’s memory for backup purposes (just in case you will need it again). If you want to receive the
old data again, use the
Mark all as ‘new’ command first- this will make all the data appear as if it was never
saved or uploaded before.
C.2.2. Database management commands
All database management commands are grouped into the “Database tools” folder of the Main Menu.
These are: Status report , Delete saved
data , Mark all as ‘new’ , Delete all data ,
Recover data .
C.2.3. Checking the database
status
There are two ways to check the
database status. Firstly, there is a Status
report command that provides a detailed
status information. In addition, a Database
icon displayed in the
Normal Mode
provides a rough estimation of the
database memory utilization.