Page 96 - AIS access_chang_ingraham

94 CHAPTER 5 ACQUISITION/PAYMENT BUSINESS PROCESS

The Relationships: Making the
Necessary Linkages

1. Examine Figure 5-1 carefully. Now that we have created the Primary Key for the
Purchase Order Table, we need to create the necessary relationships. Click on the
Relationships icon to open the window. Notice that we need to add the Purchase
Order Table and the PO Inventory Table. Click on the Show Table :: icon.
2. Click on the PO Inventory Table, hold down the Ctrl key, and click on the
Purchase Order Table. Click on the Add key and click Close.

Show Table I,-?J~

Tables IQueries II Both I \
[~ Add l

\
[ Close )
Cash Disbursement Receiving Table A ,
Cash Disbursement Table .......
Cash Receipt Sale Table
Cash Receipt Table
Cash Table
Customer Table -
Extras Table
Inventory Table
.~.9.)~y'.~.~~gry..T~.~.I.~...,..............................................................
!.e.yr~b.9.?~...Q.rg.~r..T.9.J?.!.~...........................................................1
Receiving Inventory Table -
Receiving Report Table
Sales Inventory Table EJ

FIGURE 5-10

3. Make the necessary linkages by dragging the primary keys to their foreign keys
in the appropriate tables. Recall that when you do this, the Edit Relationships window
appears. Click on the Enforce Referential Integrity button.

4. Create the other two necessary relationships.
5. Close the Relationships window and save the changes.

The Purchase Order Form

Now that the Relationships have been created, we are ready to begin creating the Purchase
Order Form. As we found with the Sales Form, this form will require the use of several
tables. We will need to be able to read from the Supplier Table to obtain supplier