Shorties Flashcards
1
Q
Database environment
A
hardware - single device,multi-processor
2
Q
ansi/sparc
A
adjusting schemas - give data independence
3
Q
DBMS
A
dbms - define create maintain
dictionary - contains metadata
ddl - allow spec
dml - provide enquiry
4
Q
client server apps
A
two or more machines database and dbms user interface apps flexible performance cheap consistent
5
Q
data models
A
integrated concepts
6
Q
conceptual data
A
develops representation requirements
7
Q
conceptual schema
A
core definition
8
Q
view
A
defined query, base relation, conceptual schema, dynamic, virtual
updateable for single, non updateable for multiple
9
Q
enity type
A
classifies
10
Q
relationship occurence
A
unique association
11
Q
relationship degree
A
entity types in relationships
12
Q
attributes
A
property
domain - acceptable values
simple - single
composite - multiple
