I created one table "Employee" set one foreign key named FK_DepartmentID in "Department" Table.
then i removed it by mistake..
after some days i realise that there is no foreign key relation in both tables so I again want to add with same name but now it is giving an error that it already having FK_DepartmentID where as the key is not visible in table relations.
Is the key created is still there is database? if yes then where it goes?
if i set option "Check Existing Data on Creation or ReEnabling" =No
then it don't give any error.
what this option do?