At 21:55 29/09/2008, you wrote:

>tickerboo2002 wrote:
>> Thanks for your reply. It's entirely likely that I did change a
>> column from NULL to NOT NULL using Database Workbench, but I've now
>> had the client send me their database and all columns that are marked
>> as NOT NULL contain a valid value. There are no NOT NULL columns
>> which are NULL.
>>
>> This is for my TELEPHONE_SYSTEM_ALLOCATION table, but that does not
>> contain a FORM_ID column. From the errors I listed previously, is it
>> certain that the errors are for the TELEPHONE_SYSTEM_ALLOCATION table,
>> or could it be the table following that?
>
>Yes, maybe it is the next table. Take a look in database and see which
>table is next.

...in alphabetical order.

But also check any CHECK constraints in TELEPHONE_SYSTEM_ALLOCATION

./hb