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Maximum JOINs??
Message
De
04/09/1998 10:11:35
 
 
À
04/09/1998 10:08:02
Information générale
Forum:
Visual FoxPro
Catégorie:
Problèmes
Titre:
Divers
Thread ID:
00133257
Message ID:
00133273
Vues:
11
What prevents you from splitting filter string itself? BTW, what is the purpose of this SELECT, report or grid?

>Hi Edward,
>
>Splitting the SQL will not achieve the purpose as the filter string that can be passed to the SQL, may contain combinations of more than 11 different tables.
>
>Is there a limitation in VFP, for the number of JOINs one can use?
>
>Thanks,
>Hardik
>
>>>Hi,
>>>
>>>I am trying to use several JOINs in a SELECT-SQL, but if I specify more than 9 joins, then VFP gives an error while executing the query. The error (#1805) is as follows:
>>>
>>>SQL:Too many subqueries.
>>>
>>>And to top that, I am not using any subqueries at all.
>>>
>>>Any idea?
>>>
>>>TIA,
>>>Hardik
>>
>>You can always split you big SELECT to chain of smaller ones, and it will work faster. Start the chain with SELECT which will return smaller recordset.
Edward Pikman
Independent Consultant
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