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SQL syntax help with a subquery
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Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Network:
Windows NT
Database:
MS SQL Server
Divers
Thread ID:
01173944
Message ID:
01173948
Vues:
9
Try
SELECT pt.*, ct.b_Name ;
	FROM ParentTable pt ;
	JOIN ChildTable ct ;
		ON pt.a_pk = ct.b_afk ;
	AND b_area = (SELECT MAX(b_area) FROM ChildTable ct2 WHERE ct2.b_pk = ct.b_pk)

	
>
>I'm hoping to get some assistance on a specific SQL query. Here's a simplified version of the two tables it is working off:
>
>Table A (parent)
>a_pk (pk)
>
>Table B (child)
>b_pk (pk)
>b_afk (fk to parent)
>b_area (area)
>b_name (non-unique name)
>
>Problem: I am trying to write a query that returns the name (b_name) of the largest child (b_area) for all parent records.
>
--sb--
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