You'll have to analyze connection Errors collection.

FOR Each loErr IN loCon.Errors
  * loErr.Description, loErr.Number
ENDFOR

>Hi all, I've a table with several check constraints and I'd like to know if there's a way to know exactly what constraint was broken (if that's the case). For example If I have CK_CreditLimit Constraint where the ammount for the field must be >=0, if I try to insert a negative value the constraint is triggered but how can I know back in my Data Layer that this specific check was broken.
>
>I'm using ADO to connect to the database.
>