On table create I can specify a default value. That's cool.
However, how can I retrieve just those default values for reference.
This does make sense if one is to write highly generic applications.

Yes, I can do the following...

select rdb$field_name
, rdb$default_value
from rdb$relation_fields
WHERE (rdb$field_name not starting with 'rdb$')
and rdb$relation_name = 'ATableName'

...which returns rdb$default_value(s) as blob of subtype 2 (blr).

The simple question, however, is: How do I extract the default
value(s) from the blob?

I did have a look at the blr example, but it did not really hint
anything in the above regard. Any help is much appreciated.

Thanks and cheers

Johannes