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Get column from derived table
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Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows Server 2012
Network:
Windows 2008 Server
Database:
MS SQL Server
Application:
Web
Divers
Thread ID:
01601694
Message ID:
01601707
Vues:
25
>>>Does it make sense?
>>
>>You need a simple LEFT JOIN, e.g.
>>select Cust.ID, Cust.Name, T.Descr as TypeDescr
>>from Customer cust LEFT JOIN Types T ON Cust.Type_ID = T.Descr
>
>I tried it. LEFT JOIN creates a query where you have as many records for each record in CUSTOMER as there are TYPEs. Didn't work for me.

Something doesn't make sense here.

If type_ID in the Customer table is an FK and Type_ID in the Types table is primary key, then LEFT JOIN should only bring one row per customer with the type description.

May be Type_ID is not the primary key in the Types table?
If it's not broken, fix it until it is.


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