25.05.2015 17:43, Hugo Eyng hugoeyng@... wrote:

>
> 1 - I created a column NOT NUL in a table (ALTER TABLE MYTABLE ADD
> NEW_COLUMN INTEGER NOT NULL). There were already some records in the
> table. FB didn´t raise any warning or exception.
> 2 - I created a backup file from MYDB.FDB using gbak. FB didn´t raise
> any warning or exception.
> 3- I tried to restore the backup file to a new MYDB.FDB and FB raises
> and error: gbak: ERROR:validation error for column NAME, value "*** null
> ***"
>
> Let´s accept than the step 3 is coherent.
>
> So, why can I execute step 1 without troubles?
>
> I am using FB 2.5 and I tried using FB 3.0 too.

Did you really try FB 3.0? It should raise an error at step 1.


Dmitry