DAD 220 2.1 Relational model
with complete verified
solutions
Database model - answer A conceptual framework for database
systems, with three parts: Data structures, Operations, Rules
Data structures - answer prescribe how data is organized
Operations - answer manipulate data structures
Rules - answer govern valid data
Relational model - answer a database model based on a tabular
data structure
Big data - answer unprecedented data volumes and rapidly
changing data structures
Set - answer an unordered collection of elements enclosed in
braces
Tuple - answer an ordered collection of elements enclosed in
parentheses
Table - answer has a name, a fixed tuple of columns, and a varying
set of rows
with complete verified
solutions
Database model - answer A conceptual framework for database
systems, with three parts: Data structures, Operations, Rules
Data structures - answer prescribe how data is organized
Operations - answer manipulate data structures
Rules - answer govern valid data
Relational model - answer a database model based on a tabular
data structure
Big data - answer unprecedented data volumes and rapidly
changing data structures
Set - answer an unordered collection of elements enclosed in
braces
Tuple - answer an ordered collection of elements enclosed in
parentheses
Table - answer has a name, a fixed tuple of columns, and a varying
set of rows
