On 3/7/26 12:46 PM, Igor Korot wrote:
Hi, David,
On Sat, Mar 7, 2026 at 12:03 PM David G. Johnston
<[email protected] <mailto:[email protected]>> wrote:
On Sat, Mar 7, 2026 at 12:58 PM Igor Korot <[email protected]
<mailto:[email protected]>> wrote:
So I started looking for a way to return SQL_NO_DATA
on that 4th column...
Doesn't "No Data" refer to the result set as a whole, not individual
columns? I'd assume NULL is detected some other way.
No, I think it’s column based.
1) My knowledge of ODBC is limited.
2) This:
https://learn.microsoft.com/en-us/sql/odbc/reference/develop-app/return-codes-odbc?view=sql-server-ver17
"SQL_NO_DATA No more data was available. The application calls
SQLGetDiagRec or SQLGetDiagField to retrieve additional information. One
or more driver-defined status records in class 02xxx may be returned.
Note: In ODBC 2.x, this return code was named SQL_NO_DATA_FOUND."
would seem to indicate that David Johnston is correct:
'Doesn't "No Data" refer to the result set as a whole, not individual
columns? I'd assume NULL is detected some other way.'
The call to SQLGetData() returns data in one column.
And as stated it successfully retrieves empty array for column 3 and
moves on.
Thank you.
David J.
--
Adrian Klaver
[email protected]
