Disable/Enable Oracle Application Login User API

How to Disable(end date) large number of Users in Oracle Apps
How to end date large number of Users - fnd_users in Oracle Apps

To Disable/Enable bulk number of users in oracle Applications, we have a API

apps.fnd_user_pkg.EnableUser =>To Enable Users
apps.fnd_user_pkg.DisableUser =>To Disable Users,

Below is the syntax which can used to Huge number of Users in one GO !!
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declare cursor cur1 is
select user_name from apps.fnd_user where LOWER(user_name) Not IN ('username','username', .......);
begin
for all_user in cur1 loop
apps.fnd_user_pkg.EnableUser(all_user.user_name);
commit;
end loop;
End;


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declare cursor cur1 is
select user_name from apps.fnd_user where LOWER(user_name) Not IN ('username','username', .......);
begin
for all_user in cur1 loop
apps.fnd_user_pkg.DisableUser(all_user.user_name);
commit;
end loop;
End;