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Please answer this question with a diagram model of what this would look like. E

ID: 3738947 • Letter: P

Question

Please answer this question with a diagram model of what this would look like.

Examine the attached unnormalized table. Using the MySQL Workbench Data Modeler, construct a diagram that shows the table in 3rd Normal Form. Provide a summary of the steps you took to achieve 3rd Normal form. Include your rationale for new table creation, key selection and grouping of attributes. Using MysQL Workbench Data Modeler, create a model showing the below table in 3rd Normal Form. Note that you only can model table and column names and data types. The data shown is for your reference to determine functional, partial, and transitive dependencies. PetName InvoiceNumber InvoiceDate CustomerName CustomerAddress Amount ProcedureName $30.00 Rabies Vaccination 987 Jan 13 2015 Mark Evans 123 This Street Orlando, FL$24.00 Rabies Vaccination Jan 13 2015 | Mark Evans 123 This Street Orlando, FL

Explanation / Answer

Solution:

When there is a lossless-join decomposition of the relations then it is considered as 3NF.

The above table will be decomposed into Two tables named as Invoice, Customer to make it into 3NF

The tables will be

The primary keys are in bold and underlined.

Now each attribute of the table is uniquely identified.

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