Mihai Costache <[EMAIL PROTECTED]> writes:

> removing unsigned is not an option because this is a supplementary
> protection rule for the values to be always positive numbers

Unsigned types are not standard in SQL.

Generally speaking, unsigneds suck
 <http://www.artima.com/intv/gosling33.html>

Just tried this:
mysql> create table a (i int unsigned);  insert into a values ('-1'); select * 
from a;
+------+
| i    |
+------+
|    0 |
+------+
1 row in set (0.00 sec)

Funny!




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