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1 . Sketch an EER diagram to represent a data model for Florida voting data below. Make a note of any constraints that you cannot
Sketch an EER diagram to represent a data model for Florida voting data below. Make a note of any constraints that you cannot easily represent in your model. points For political races, we keep track of position name and year eg Tampa mayor in and an optional associated district code. There may be multiple races in the same year and multiple races for the same position in different years, but only one race for the same position in the same year. Citizens have a unique Voter Registration Number used for identifi cation name, and age, and possibly party affiliation. Candidates may run in several races, though they generally only run in one race per year. Candidates are citizens who are running for office in a race. In addi tion to their citizen information, we keep a short bio for each candi date. Citizens may own one or more addresses, though they designate one as their primary residence. Addresses are identified by an extended zip code, though they also have a latitude, longitude, street address, optional apartment number, city, and state. Addresses are associ ated with any number of district codes. Citizens may cast votes in all of the races associated with districts of their primary residence. We will imagine that citizens may cast a vote for at most one candidate in these races, and we keep track of who they voted for and when their vote was cast. Races and the records being kept are much more complicated in practice, but this is a reasonable simplification. Convert your EER diagram in the previous question into a collection of tables with constraints. points
Sketch an EER diagram to represent a data model for Florida voting data
below. Make a note of any constraints that you cannot easily represent in
your model. points
For political races, we keep track of position name and year eg
Tampa mayor in and an optional associated district code.
There may be multiple races in the same year and multiple races
for the same position in different years, but only one race for the
same position in the same year.
Citizens have a unique Voter Registration Number used for identifi
cation name, and age, and possibly party affiliation. Candidates
may run in several races, though they generally only run in one race
per year.
Candidates are citizens who are running for office in a race. In addi
tion to their citizen information, we keep a short bio for each candi
date.
Citizens may own one or more addresses, though they designate one
as their primary residence. Addresses are identified by an extended
zip code, though they also have a latitude, longitude, street address,
optional apartment number, city, and state. Addresses are associ
ated with any number of district codes.
Citizens may cast votes in all of the races associated with districts
of their primary residence. We will imagine that citizens may cast
a vote for at most one candidate in these races, and we keep track
of who they voted for and when their vote was cast. Races and the
records being kept are much more complicated in practice, but this
is a reasonable simplification.
Convert your EER diagram in the previous question into a collection of
tables with constraints. points
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