Introduction To Database Management; Database Integrity Functions - Zeiss HUMPHREY 720i User Manual

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INTRODUCTION TO
DATABASE
MANAGEMENT

Database integrity functions

REV. B 02/03 PN 51680-1
Database errors are inevitable. Power surges, temperature changes, and mechanical failure
can disrupt the proper operation of storage devices, and prevent you from successfully saving
or retrieving data. Because both hard and floppy disks store information magnetically, the
information can be damaged by static electricity and strong magnets.
Database management is not difficult and should not consume much time. Carl Zeiss
Meditec strongly recommends that all HFA customers make extra copies of their
patient database and setup configurations. In the event of a database problem, and
you need to restore your database, you will have the solution at hand.
For the sake of simplicity, this manual separates database management into two categories:
functions which manipulate data (Copy Tests, Delete Tests, and Change Patient Data, for
example), and functions which preserve database integrity (Backup Configuration, Rebuild
Hard Disk Database, etc.). This section discusses preserving database integrity. All other
database management functions are explained in Section 8: "File Functions".
Functions associated with preserving database integrity can be found on both the File Functions
and Additional Setup Menus. These functions are outlined below.
On File Functions Menu
Creates an exact copy of a floppy disk; used for duplicating patient database information onto
additional floppy disks.
Backup: Copies patient files from the hard disk to floppy disks or magneto-optical disk(s).
Restore: Copies patient files from a set of floppy disks or magneto-optical disk(s). Used in the
event of a hard disk failure. The Source and Destination you choose determines
whether you are backing up or restoring data.
Provides information on the number of tests and the number of patients found on the hard
drive and floppy disk databases. It can also identify a backup floppy disk (see Section 8).
On Additional Setup Menu
Copies Custom Test Patterns, Main Menu button definitions, and System Setup selections to a
floppy disk.
Reinstates Custom Test Patterns, Main Menu button definitions, and System Setup selections.
A database repair utility; used only in the event of hard disk database problems.
A database repair utility; used only in the event of floppy disk database problems.
Deletes files containing patient data with no associated test data.
DATABASE MANAGEMENT
HUMPHREY FIELD ANALYZER II - i series