Non blocking query call

Hi Folks,
How can I invoke a non blocking ODBC query on a table in a SQL Server
database. Our current design requires the method invoking the query to
'return' immediately after invoking the query. The results of the
query should be put in a globally accessible location.
I think SQLFetch is a blocking call.
Thanks,
VishalWhat you are looking for is called Asynchronous Execution. You must enable
async using SQLSetConnectAttr() and SQL_ATTR_ASYNC_ENABLE.
ODBC APIs will return SQL_STILL_EXECUTING while the operation is still
pending. Once the operation completes, the API will return something other
than SQL_STILL_EXECUTING (SQL_SUCCESS if the operation succeeded, etc).
The async model exposed by ODBC is a Poll model, where you have to
periodically poll for completion (instead of a Notification model, where you
are notified that the operation completed).
Brannon Jones
Developer - MDAC
This posting is provided "as is" with no warranties and confers no rights.
"Vishal Prabhu" <vprabhu@.uci.edu> wrote in message
news:31cf0289.0312191118.4354c4fd@.posting.google.com...

quote:

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> Hi Folks,
> How can I invoke a non blocking ODBC query on a table in a SQL Server
> database. Our current design requires the method invoking the query to
> 'return' immediately after invoking the query. The results of the
> query should be put in a globally accessible location.
> I think SQLFetch is a blocking call.
> Thanks,
> Vishal

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