Jul 26, 2017 02:58 AM|Deepak Panchal|LINK
when you try to drop constraint , did it drop successfully or you get some error like below.
Msg 3728, Level 16, State 1, Line 1
'fk_gr_res_resources' is not a constraint.
Msg 3727, Level 16, State 0, Line 1
Could not drop constraint. See previous errors.
if you got error like below, it means constraint is not exist.
to confirm it you can fire a select query that use that constraint.
so you can try to check it.