i am using the command

try
DMMain.DbMain.AlterUser(uaAddUser,
QryL180L180_ID.AsString,
QryL180L180_SENHA.AsString,
'',
QryL180L180_ID.AsString,
'',
'' );
except
showmessage('User already exists!');
end

and return the error :

undeclared identifier: 'uaAddUser'

I need to add a user in the database directly from the application.

Thank you for help.

Flavio Macedo