August 21st, 2004, 04:38 PM
Kylix: Floats from MySQL end up truncated in app
I'm new to Delphi/Kylix, so perhaps there's someone to help me out with kind of a strange problem.
My application accesses a MySQL (3.23) server and tries to fetch some data from a table that includes a float column.
Whenever I do something like
I end up with an integer value (well, typed as float though).
There's nothing wrong with the query, this doesn't even work when I use a TDBGrid to display rows from that table. A manual query via telnet e.g. reveals:
mysql> select floatcol from sometable;
| floatcol |
| 83.7 |
| 83.2 |
| 84.1 |
| 82.8 |
| 83.5 |
| 83.3 |
| 84.4 |
| 83.5 |
8 rows in set (0.00 sec)
The DBGrid only shows these numbers as
and so on.
Any ideas what could be wrong here? I'm using Kylix 3.
August 21st, 2004, 09:26 PM
I would check the underlying TField value and see what the value of TField.Precision is set to.
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August 22nd, 2004, 04:13 AM
Thanks for the hint. Help however says, that the "Precision" property must be greater than 2 and that it is automatically set to 2 if someone/something tries to set it to a value less than 2.
Originally Posted by Scorpions4ever
In my case, the Precision is zero