Answered Essay: This table is un-normalized form. Convert this table from 1NF to 3NF. Show your work. W

1. This table is un-normalized form. Convert this table from 1NF to 3NF. Show your work. rojec rojec part partmer our Rate rojec ITm Name No. Code tle ManagerBudget No. Name ensions mi Phillips Phillips System Philips System ensions ones ensions System ensions ewis ones laries System alaries System alaries System laries System ase alary Richards ewis ase System System System ewis ewis ewis ames 2. What are the 1st, 2nd and 3rd NF?

This table is un-normalized form. Convert this table from 1NF to 3NF. Show your work. What are the 1^st, 2^nd and 3^rd NF?

Expert Answer

 

The Given Table is already in 1NF; which has no multiple values in any cell

1NF:

In order to convert to 2NF we need to split the table into multiple tables which does has only functional dependancy on only the primary key;

Now the table became 2 NF

And the table is also 3NF which doesn’t had any multi valued attribute.

1NF: A table is in 1st Normal form if it doesn’t have any multivalued attribute, composite attribute or its combination in the same data domain, in the above table any cell doesn’t contain a multi value which means it is in 1NF.

2NF: A table meets 2NF when the 1NF requirement is met , and all attributes except the primary key have functional dependency entirely to the primary key. In the above table project name depends on project no; and department name depends on department no; so we can split the tables into Project, Employee, Department with the Primary keys Project code, Employee no and Department no.

3NF: In order to the table to be 3NF it has be 1NF, 2NF. all the attributes in a table are determined only by the candidate keys of that relation and not by any non-prime attributes. For Example the name column contains fname, lname ,and mname, in 3NF the fullName column in split into 3 columns. Therefore this table is in 3NF.

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