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SQL Select union with empty rows
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27/07/2010 09:11:43
 
 
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Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
SQL Select union with empty rows
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows 7
Divers
Thread ID:
01474117
Message ID:
01474117
Vues:
143
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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