Can't drop constraint

Hello,
I am using SS7.
I have a table with a column "yn_LockOut" with a default set to 0. I tried
to delete the column and got the following:
'tblGuidelineResponseOwner' table
- Error modifying column properties for 'yn_LockOut'.
ODBC error: [Microsoft][ODBC SQL Server Driver][SQL
Server]'DF_tblGuideLineResponse_yn_LockOut' is not a constraint.
[Microsoft][ODBC SQL Server Driver][SQL Server]Could not drop constraint.
See previous errors.
When I ran exec sp_helpconstraint 'tblGuidelineResponseOwner', I got:
constraint_type constraint_name
DEFAULT on column yn_LockOut DF_tblGuideLineResponse_yn_LockOut
I ran:
alter table tblGuidelineResponseOwner DROP CONSTRAINT
DF_tblGuideLineResponse_yn_LockOut
and got the error message:
'DF_tblGuideLineResponse_yn_LockOut' is not a constraint.
Server: Msg 3727, Level 16, State 1, Line 5
Could not drop constraint. See previous errors.
Any help with this would be appreciated.
--
Thanks in advance,
StevenSteven,
Check sp_unbindefault in BOL.
-Mark
This positing is as is
>--Original Message--
>Hello,
>I am using SS7.
>I have a table with a column "yn_LockOut" with a default
set to 0. I tried
>to delete the column and got the following:
>'tblGuidelineResponseOwner' table
>- Error modifying column properties for 'yn_LockOut'.
>ODBC error: [Microsoft][ODBC SQL Server Driver][SQL
>Server]'DF_tblGuideLineResponse_yn_LockOut' is not a
constraint.
>[Microsoft][ODBC SQL Server Driver][SQL Server]Could not
drop constraint.
>See previous errors.
>
>When I ran exec
sp_helpconstraint 'tblGuidelineResponseOwner', I got:
>constraint_type
constraint_name
>DEFAULT on column yn_LockOut
DF_tblGuideLineResponse_yn_LockOut
>
>I ran:
>alter table tblGuidelineResponseOwner DROP CONSTRAINT
>DF_tblGuideLineResponse_yn_LockOut
>and got the error message:
>'DF_tblGuideLineResponse_yn_LockOut' is not a constraint.
>Server: Msg 3727, Level 16, State 1, Line 5
>Could not drop constraint. See previous errors.
>Any help with this would be appreciated.
>--
>Thanks in advance,
>Steven
>
>.
>sql