declare
    n number;
begin
	select max(lov_id) + 1 into n from dbcgo_lov ;

	DBMS_OUTPUT.Put_Line ('next lov id: ' || n);
	
	begin
	    EXECUTE IMMEDIATE ('drop sequence seq_lov');
	exception
	when others then 
	    null;
	end;
	
	EXECUTE IMMEDIATE ('create sequence seq_lov start with ' || n);
	

end;
/

show errors;