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Base de données, Tables, Vues, Index et syntaxe SQL
>Actually, I glad you replied because now I don't have to go searching for this thread. I guess I was brain dead the other day and missed the obvious answer.
>
>SELECT *
>FROM orders INNER JOIN ordlines
> orders.orderid = ordlines.orderid
>WHERE orders.orderid IN (
> SELECT TOP 3 orderid
> FROM orders
> ORDER BY orderdate DESC)
>
>-Mike
Mike,
The followint (Use the VFP sample data) doesn't work:
SELECT orders.*, orditems.* ;
FROM orders INNER JOIN orditems ON orders.order_id = orditems.order_id ;
WHERE orditems.lineno IN ;
(SELECT TOP 3 lineno FROM orditems ORDER BY quantity DESC)
This is exactly why the question was originally posted, you can't put a SELECT TOP x in a subquery. I wrestled with this last winter, and settled on the loop-and-accumulate solution to get the top x in each of my categories.
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