存储过程变量类型定义与表字段一致

create or replace procedure pro_getchart(chart_id   in number,
                                         start_time in varchar2,

                                         end_time   in varchar2) is
  temp_id dic_chart.chart_id%TYPE;
begin

  select t.chart_id into temp_id  from dic_chart t where t.chart_id =  chart_id;
   
end pro_getchart;