[Qt-interest] SQL (ODBC) retreiving doubles incorrectly
Andre Somers
andre at familiesomers.nl
Fri Oct 2 12:07:55 CEST 2009
Hi,
I am running into a very weird issue right now.
I am using the SQL module to connect to an access database through ODBC.
That has served me reasonably well untill now. I am trying to retreive
values from a query that returns some floating point values. The data
type for the field is correctly identified as as QVariant::double.
However, when trying to read values, I get into trouble for values
smaller than 0,1. In this case, the QVariant returned seems to contain
only the scientific notation part of the value, like E-2 or E-3. Those
values alone can obviously not be converted properly into a double, the
the .toDouble() call on the QVariant returned from the query returns 0
and sets the boolean value passed to check the success to false.
I really need to be able to read any value, even if they are in the
range of 1E-10. If I open the query in Access, I can see all the values
just fine, and none of them appears in scientic notation.
Any clues how to solve this issue?
André
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