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Need help fixing the ERR diagram attached. From the following feedback: 1 - No subtypes and No subtype attributes 2 - No completeness constraints rules
Need help fixing the ERR diagram attached. From the following feedback:
No subtypes and No subtype attributes
No completeness constraints rules applied.
No disjointness constraints rules applied.
No discriminator attribute created.
Please follow Lab feedback.
Also follow Lab directions.
Prior Requirements:
Need help updating the following ER Diagram. With the following requirements:
We consider Elijay Community Hospital employs both full
time and part
time staff for this lab.
There are also two types of patients at the hospital: inpatients and outpatients.
Make sure you apply the feedback from Lab
to your E
R diagram from Lab
njkhh and
Please complete lab
with the extended E
R diagram diagram
EER diagram
considering Ellijay Community Hospital hires both full
time and part
time staff. There are also two types of patients at the hospital: inpatients and outpatients.
Feedback:
There is a many
to
many relationship between the Patient and Personnel entities.
There is a one
to
many relationship between Department and Personnel
The phone attribute of the patient entity is a multi
valued attribute. The double oval is a notation for it
The email attribute for Personnel Entity is also a multi
valued attribute. The double oval is used for it
Name and Address are composite attributes. Name
last
name, first
name
Address
street
city state, zip code
Current Updated Requirements:
Normalize the EREER diagram create a Normalized ER NER diagram.
To normalize the ER diagram, follow these instructions:
What we did so far is EREER diagrams. In order to do ER our only concern is to capture right
entities with right attributes and right relationships between entities. Also we like to figure out
the general cardinality of relations.
After we are done with EREER it is time to do some normalization. We can break the process
of normalization into two steps. First step is to normalize attributes, and second step is to
normalize relationships between entities.
NER Step :
Attribute Normalization is the process of turning compound attributes and multivalued
attributes into entities and establish a relationship between these new entities and the base
entity.
Use only st normal form NF along with associative entity.
Feedback and new requirements need to be addressed.
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