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Help to build a query with inners, left, right or full j
Message
From
16/06/2004 11:08:47
 
 
To
16/06/2004 09:57:43
Hilmar Zonneveld
Independent Consultant
Cochabamba, Bolivia
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00913984
Message ID:
00914274
Views:
8

ORDER BY not necessary? Perhaps you are right, but I am not sure. I may be wrong, but I think I read somewhere that there is no guarantee that the records will appear in any specific order. In other words, it might work in some cases, and not in others.


On VFP9 perhaps, the order can not will be guarantee (but I think not).

The reason? Simple, VFP does not optimize GROUP BY and ORDER BY,
and therefore it executes GROUP BY with a simple algorithm
(in truth not much efficient < 50%),
and this necessarily orders the columns in ASCENDING ORDER.

I think that nobody can find against example.

Fabio
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