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Aggregate Problem
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De
05/04/2006 21:56:35
John Tomblin
Service Station Systems, Inc.
San Jose, Californie, États-Unis
 
 
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Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
Aggregate Problem
Versions des environnements
Visual FoxPro:
VFP 7
OS:
Windows XP
Divers
Thread ID:
01110841
Message ID:
01110841
Vues:
49
I want to know how many invoices there are for each company.
select company from invoices into cursor X1
select Company, Cnt(Company)as Invoices from X1 group by 1
select Company, count(Company)as Invoices from X1 group by 1

The above all produce 1 per company even though some comapnies have 100.


select company, 1 as Inv from invoices into cursor X1
select Company, sum(Inv) rom X1 group by 1

Also, produces 1 per company.

Question 1: Why do the above not work?
Question2: How can I get the number of invoices per company with an SQL select?
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