Exp19_access_ch03_ml1 – small business loans 1.0


Exp19_Access_Ch03_ML1 – Small Business Loans 1.0


Exp19_Access_Ch03_ML1 – Small Business Loans 1.0

You are the manager of a regional  business loan department for the U.S. Small Business Administration  office. You have decided to evaluate whether Access could be used in  place of the Excel worksheet you are currently using. You will create a  table, add some sample customers, and import some recent data from an  Excel spreadsheet. You will calculate the payments for the loans that  are currently on the books by creating a query using the Pmt function.  You will also summarize each loan by the type of loan (M=Mortgage,  C=Car, and O=Other).

In   Design view, create a new table. Add the first field named CustomerID with   AutoNumber Data Type. Add Company as the second field name, and FirstName as   the third field name. Accept the default data types.

  Save the Table with name as Customers. Click Yes, when prompted for defining Primary   Key.

Add the following fields to the   Customers table (in this order), accepting the default data type of Short   Text:


  Verify that CustomerID is the primary field.

Save the table and switch to   Datasheet view. Add the following records to the table:

Company FirstName LastName City State Zip
Jones   and Co Robert Paterson Greensboro NC 27401
   Elements, Inc. Merve Kana Paterson NJ 07505
   Godshall Meats, LLC Francisco De La Cruz Beverly Hills CA 90210

Import the spreadsheet using the   downloaded Excel file a03_h2_Loans.xlsx   into a new table. Choose LoanID as the primary key and accept all other   defaults in the Import Wizard.

Open the Loans table in Design   view. Change the InterestRate field format to
   Percent. Change the field size for the CustomerID field to Long  Integer. Save   and close the table. Click Yes when prompted that some  data may be lost. 

Create a relationship between   the CustomerID fields in the  Customers and Loans tables. Enforce referential   integrity. Save and  close the Relationships window.

Create a query using the two   tables that will calculate the payment  amount for each loan. Add the   following fields: Company, LoanID,  Amount, InterestRate, Term, and LoanClass,   in that order. Sort the  query by LoanID in ascending order. Save the query as   Loan   Payments.

Use the Expression Builder to   add a calculated field named Payment  in the first blank column to   calculate the loan payment for each loan  using the Pmt function. Insert the   appropriate field names in place  of the placeholder arguments. Assume the   loans have monthly payments  (12 payments per year). Ensure the payment   displays as a positive  number. Run the query.

Switch to Design view and change   the format for the Payment  calculated field to Currency. Run the query again   to verify your  change.

In Datasheet view, add a Totals   row. Use it to calculate the sum of  the Amount column, the average   InterestRate, and the average Term.  Save and close the query.

Create a copy of Loan Payments.   Save the new query as Loan Payments Summary. Open the Loan Payments Summary   query in Design view and rearrange the columns as follows:
   LoanClass, LoanID, Amount, and InterestRate. Delete columns Company, Term,   and Payment.

Group the Loan Payments Summary   query by the LoanClass field.  Display the number of loans in the LoanID   column, the sum in the  Amount column, and the average in the InterestRate   column. Run the  query.

Switch to Design view and   display the Property Sheet. For the LoanID field, change the caption to Loans. For the Amount field, change   the caption to Total Amount and change the format to   Currency. For the InterestRate field, change the caption to Avg Interest   Rate and change the format to Percent. Run the query.   Save and close the query.

Close all database objects.   Close the database and then exit Access. Submit the database as directed.

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