The Hierarchy of Data
What
is a data file?
p. 521
Next
ØCollection of
related records stored on disk
key field
records
fields
22 Fifth
Avenue
P.O. Box 45
15 Duluth
Street
33099 Clark
Street
1029 Wolf
Avenue
Address
Auburn
Clanton
Prattville
Montgomery
Montgomery
City
AL
Weinberg
Jonah
3928
AL
Marcus
4872
AL
Valesquez
Adrian
3376
AL
Murray
Shannon
2928
AL
Vandenberg
Donna
2295
State
Last Name
First Name
Member ID
Green