Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Multiple JOINs SQL/ Local View
Message
From
04/09/2002 11:36:14
John Vlahos
V I Software Solutions Design
Mississauga, Ontario, Canada
 
 
To
All
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Title:
Multiple JOINs SQL/ Local View
Miscellaneous
Thread ID:
00696641
Message ID:
00696641
Views:
62
I have created 6 tables: Order , Customer, ShipTo, BillTo, and ShipVia and Transport Tables in a database.

I need information in all these files pertaining to a specific order to be displayed on the Order form. Can I get all this information by creating a Local View with on SQL statement and multiple INNER JOINS? I read there is a limit to 4 tables when using an INNER JOIN. Is there a way around this?

Following is the general structure:
===================================

Order.DBF
---------
ID
PONo
CustomerID

Customer.DBF
------------
ID
cCode
cName

ShipTo.DBF
------------
ID
cCustomerID
cCode
cName

BillTo.DBF
------------
ID
cCustomerID
cCode
cName

ShipVia.DBF
------------
ID
cCustomerID
cCode
cTransportID

Transport.DBF
------------
ID
cCode
cName

ShipTo, BillTo, and ShipVia records belong to the Customers related on ID & CumstomerID. (One to Many)

ShipVia belongs to Customers AND requires a selection from the Transport.dbf (list of all transports)

When creating an order, a customer is selected, then the billto, then the shipto, then the shipvia.
Next
Reply
Map
View

Click here to load this message in the networking platform