The table shown below lists dentist-patient appointment data. A patient is given an appointment at a specific time and date with a dentist. On each day of patient appointments a dentistwill performspecific surgery(such as Implant S10 Root Canal S15)for that day.
Evaluate if the table shown above is normalized if not describe and illustrate the process of normalizing the table shown above to third normal form. State any assumptions you make about the data shown in this table.(20Points)
Is the tablein 1NF 2NFor3NF?
If not describe and illustrate the process of normalizing it to 3NF.
Show final tables with data after normalization.
Design a database for public libraries.(30 Points)
John works for an IT service companyas a seniordatabase designer. His company just won a few contracts to serve several public library systems within the state of Maryland. Each library system operates independently though John is in charge to design a single database to store information needed for all libraries. Belowaresome of the data that need to be kept track of.
For each library systemthe databaseneedsto store library name (e.g. City of Baltimore Public Libraries and City of Annopolis Public Libraries) phoneandmailing address.
Need to store customer information including name phoneandaddress.
Each library issues its own library card to its customers. A customer can have multiple library cards one for each library system. For example a customer can have both Baltimore library card and Annopolis library card. Need to store library card number (different library systems may issue cards with the same number) PIN issue date expiration date and current balance due if any.
A library has many branch locations. Customers visit a branch to checkin/check out items. Need to store branch name phone address.
Different libraries share generic catalog information. A catalog item has general information such as title description release/publishing date edition publisher. Currently there are two types specific catalog items book and DVD. Need to trackISBNtotal pagesand hardcover/softcover for books. Need totrack lengthand genre for DVDs.
Each branch stores and maintains physical items. General information about each physical item can be found by checking catalog. There could be multiple copies for thesame titleso each copy needs to be stored separately. For eachitemthe database will store copy number purchase dateandvendor name purchased from.
A library card can check out multiple items. Need to keep check of check out date due date and return date. A item can be checked out and returned the same day but cannot be checked out again using the same library card on that day.
Please complete the following tasks to designthedatabaseto meetrequirements specified. State any relevant assumption you make but do not add any additional data requirement unless really necessary.
Identify entities and attributes. List entity name and attribute names for each entity.
Identify relationships among entities. List relationship type in terms of cardinality and specifybusiness rules (e.g. 1:M between Library and Branch: a library has many branches; a branch belongs to one and only one library).
For each entity identify primary key and foreign key if applicable. If you use surrogate key for PK also specify business unique key (natural key). For FK also specify parent entity and the matching attribute in parent entity.
Create ERD using crows foot notation using ER Assistant or Visio. The ERD should incorporate all items mentioned in I II and III.