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IT WGU C170 Performance Assessment
IT WGU C170 Performance Assessment 
 
 
Section 1 
 
First Normal Form 
 
I gathered all the data from the sales invoice and created an unnormalized dataset. I determined the primary key that provided me with a unique value for all my records in this table. I used composite primary keys because both keys would be able to uniquely identify all the data in the table. Finally, I removed all the repeating groups and made the address atomic by creating separate fields for each one. 
 
 
 
There is a...
- Exam (elaborations)
- • 13 pages •
IT WGU C170 Performance Assessment 
 
 
Section 1 
 
First Normal Form 
 
I gathered all the data from the sales invoice and created an unnormalized dataset. I determined the primary key that provided me with a unique value for all my records in this table. I used composite primary keys because both keys would be able to uniquely identify all the data in the table. Finally, I removed all the repeating groups and made the address atomic by creating separate fields for each one. 
 
 
 
There is a...