Chapter 4 Flashcards
1
Q
Data Structure
A
Data organized in form of tables, with rows and columns
2
Q
Data Manipulation
A
Powerful operations (typically implemented w/ SQL) are used to manipulate data stored in the relations
3
Q
Data Integrity
A
The model includes mechanisms to specify business rules that maintain the integrity of data when they are manipulated
4
Q
Relation
A
A named, two-dimensional table of data
5
Q
Descriptor
A
A non-key attribute is also called a(n):
