:
:
ɡ . (Record) (Field) : - - - - - ... (Database Engine) Access ʡ ..
(Query language)
(Relation) (Relational Database Management System - RDBMS) . . (Normalizing Forms) .
ʡ :
: ʡ . ɡ ʡ .
: .
:
:1- Domain
2- Subtype
3- Relationship
4- Topology
5- Network dataset