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SQL Select union with empty rows
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From
27/07/2010 09:11:43
 
 
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General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Title:
SQL Select union with empty rows
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Windows 7
Miscellaneous
Thread ID:
01474117
Message ID:
01474117
Views:
144
Hi,

I need to construct a cursor with all possible solutions (no not a carthesian) :
CREATE CURSOR curOrder (id i ,iClient i, nAmount n(8,2), iOrderType i ) 
INSERT INTO curOrder VALUES( 1, 1, 100.00, 1)
INSERT INTO curOrder VALUES( 2, 2, 110.00, 1)
INSERT INTO curOrder VALUES( 3, 2, 120.00, 2)


CREATE CURSOR curOrdertype (ID i, cType c(10))
INSERT INTO curOrdertype values(1,"import")
INSERT into curOrdertype VALUES(2,"export")

CREATE CURSOR Client (ID i, cName c(10))
INSERT INTO Client values(1,"john")
INSERT INTO Client values(2,"pete")
INSERT INTO Client values(3,"eva")
My target is:

John, 100.00, import
John, 0.00, export
Pete, 110.00, import
Pete, 120.00, export
Eva, 0.00, import
Eva, 0.00, export

The basic statement :
SELECT curOrdertype.cType, curOrder.iClient, curOrder.nAmount, curClient.cName ;
FROM curOrdertype ;
FULL JOIN curOrder ON curOrder.iOrdertype = curOrdertype.ID ;
FULL JOIN curClient ON curClient.ID = curOrder.iClient
will not show the 0.00 order amount lines, I dont seem to be able to construct a correct union , anyone with a good idea?

Thanks,

Koen
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