I forgot to add that this was Firebird 1.5.2 SS for Linux.

Jason Dodson wrote:

> I know it is NULL for two reasons. First, a backup/restore fails with a data validation error on that very column,
> because it contains NULL which isn't allowed. Secondly, when doing the query "Select * from MyTable Where BBLShare Is
> Null", it actually returns records.
>
> I DID add this to an already populated table, followed by an "Update MyTable set BBLShare = 0". There is nothing that
> justifies a NULL in this column.
>
> Jason
>
> Ivan Prenosil wrote:
>> Which FB version ?
>> How do you know there are NULLs and not Zeros ?
>> Perhaps you added that column to already populated table ?
>>
>> Ivan

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