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Select SQl data using arrays
Message
From
15/08/2009 14:40:28
 
 
To
15/08/2009 13:59:39
Dragan Nedeljkovich (Online)
Now officially retired
Zrenjanin, Serbia
General information
Forum:
Visual FoxPro
Category:
Databases,Tables, Views, Indexing and SQL syntax
Miscellaneous
Thread ID:
01418215
Message ID:
01418261
Views:
49
>>>>The problem is that I DO NOT create the local cursor by selecting data from SQL server data.
>>>
>>>Then you are stuck for creating the string and pass it to SQL Server:
>>>
>>>lcKeys = []
>>>SELECT LocalCursor
>>>SCAN
>>>   lcKeys = lcKeys + TRANSFORM(KeyField)+[,]
>>>ENDSCAN
>>>TEXT TO lcSQL NOSHOW TEXTMERGE
>>>     SELECT * FROM YourTable WHERE SomeField IN (<<LEFT(lcKeys,LEN(lcKeys)-1))>>
>>>ENDTEXT
>>>IF SQLEXEC(sqlHandler, lcSQL, "NewVFPCursor") < 0
>>>   AERROR(laError)
>>>   MessageBox(laError[1,2])
>>>ENDIF
>>>
>>
>>Yes. I am afraid that I must create the stting.
>>Thanks
>
>That's the only way I've found so far, too. Depending on your ODBC driver, there may be a limitation to the length of your command string - 8K it was in my case when I last had to do this. If you have such a long list, you may be better off creating a temp table on the server, inserting your values into it, then using it in server-side select, then dropping the table. This way you chop the problem into smaller pieces - and have multiple trips to the server, of course.

I will take into consideration yours comments.
By the way. Is it possible to use Arrays instead of strings ?
Thanks
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