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Getting most recent orders?
Message
From
11/09/2008 15:36:53
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
01249462
Message ID:
01346818
Views:
6
>SELECT Customer.CustomerID, Customer.CustName, Orders.OrderID, ;
>		Orders.OrderDate, Orders.Destination ;
>	FROM Customer ;
>		INNER JOIN orders ON Orders.CustomerID = Customer.CustomerID ;
>	AND OrderDate = ( SELECT MAX(OrderDate) FROM Orders Recent WHERE Recent.CustomerID = Orders.CustomerID)
This gives me a different error - "SQL: Subquery nesting is too deep." Error 1842. Is this something that was improved with VFP 9?

>
>SELECT Customer.CustomerID, Customer.CustName, Orders.OrderID, ;
>		Orders.OrderDate, Orders.Destination ;
>	FROM Customer ;
>		INNER JOIN orders ON Orders.CustomerID = Customer.CustomerID ;
>	WHERE OrderDate = ( SELECT MAX(OrderDate) FROM Orders Recent WHERE Recent.CustomerID = Orders.CustomerID) 
>UNION
>SELECT Customer.CustomerID, Customer.CustName, Orders.OrderID, ;
>		Orders.OrderDate, Orders.Destination ;
>	FROM Customer ;
>		LEFT JOIN orders ON Orders.CustomerID = Customer.CustomerID  where orders.OrderID IS NULL
This works, but will be annoying to maintain - I may have to go back to the three step process to keep my sanity.
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