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Last 10 records based on a condition
Message
From
30/12/2001 23:07:54
 
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
00599284
Message ID:
00599288
Views:
29
>>I need to get the last 10 records of a table based on a condition. However, that table is pretty big and I don't want to use the TOP 10 clause as it will take too long. What type of approach can I use which would be the best? I am looking for a SQL approach. If that is not possible then I'll consider using code.
>
>How do you know that TOP 10 would take too long? Try
SELECT TOP 10 *, RECNO() AS recno ;
>  FROM mytable ;
>  WHERE < your condition > ;
>  ORDER BY Recno DESC ;
>  INTO CURSOR mycursor
One a one million records table, it takes about 20 seconds to get the results. That's why I asked for another approach. I didn't think of that RECNO() approach. That is faster than what I used before. But, it is still too long.
Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
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