Answered Essay: The following schema is used to register information on repayment of loans. Repayment(borrower_id, name, address, loanamou

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The following schema is used to register information on repayment of loans. Repayment(borrower_id, name, address, loanamount, requestdate, repayment_date, repayment_amount) Make the normalization to 3^rd Normal Form. Show your work.

Expert Answer

 

  • In the Repayment schema, we see name and address are dependent on borrower_id ,repayment_amount is dependent on loanamount and repayment_date is dependent on requestdate. For the above schema, the primary key will be combination of (borrower_id,loanamount and requestdate).
  • We can see several partial dependency exists. So the above schema should be broken down into the below tables:
  • Borrower(borrower_id,name,address)
  • Date(requestdate,repayment_date)
  • Amount(loanamount, repayment_amount)
  • Loan(borrower_id,requestdate,loanamount)
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