title: SQL error, Warning: Procedure created with compilation errors
body: <pre><code>create or replace procedure pro_update_last_read
  (sensorID in sensor.sensor_id%type
  , read_date in sensor.last_charged%type)
  begin
      update sensor
      set last_charged = read_date 
      where sensor_id = sensorID;
  end;
  /
  </code></pre>
  
  <blockquote>
    <p>Warning: Procedure created with compilation errors.</p>
  </blockquote>
  
  <p>What is the problem with it?</p>