Edit D:\app\Administrator\product\11.2.0\dbhome_1\oc4j\j2ee\oc4j_applications\applications\em\em\online_help\tdddg\tdddg

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<span class="bold">weight_wrong  EXCEPTION;</span>
  <span class="bold">score_wrong   EXCEPTION;</span>
  n_score       scores.score%TYPE;
  n_weight      performance_parts.weight%TYPE;
  running_total NUMBER := 0;
  max_score     CONSTANT scores.score%TYPE := 9;
  max_weight    CONSTANT performance_parts.weight%TYPE:= 1;
BEGIN
  SELECT s.score INTO n_score
  FROM SCORES s
  WHERE evaluation_id = s.evaluation_id 
  AND performance_id = s.performance_id;

SELECT p.weight INTO n_weight
  FROM PERFORMANCE_PARTS p
  WHERE performance_id = p.performance_id;

<span class="bold">BEGIN</span>
    <span class="bold">IF (n_weight &gt; max_weight) OR (n_weight &lt; 0) THEN</span>
      <span class="bold">RAISE weight_wrong;</span>
    <span class="bold">END IF;</span>
  <span class="bold">END;</span>

<span class="bold">BEGIN</span>
    <span class="bold">IF (n_score &gt; max_score) OR (n_score &lt; 0) THEN</span>
      <span class="bold">RAISE score_wrong;</span>
   <span class="bold"> END IF;</span>
 <span class="bold"> END;</span>

running_total := n_score * n_weight;
  RETURN running_total;

<span class="bold">EXCEPTION</span>
  <span class="bold">WHEN weight_wrong THEN</span>
    <span class="bold">DBMS_OUTPUT.PUT_LINE(</span>
      <span class="bold">'The weight of a score must be between 0 and ' || max_weight);</span>
    <span class="bold">RETURN -1;</span>
  <span class="bold">WHEN score_wrong THEN</span>
    <span class="bold">DBMS_OUTPUT.PUT_LINE(</span>
      <span class="bold">'The score must be between 0 and ' || max_score);</span>
    <span class="bold">RETURN -1;</span>
END calculate_score;
</pre></div>

<div class="helpinfonotealso">
<h2>Related Topics</h2>
<p><a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS00704','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a> for more information about user-defined exceptions</p>
<p><a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS00708','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a> for more information about handling raised exceptions</p>
<p><a href="tdddg_subprograms049.htm#CIHIHAFG">Handling Exceptions (Run-Time Errors)</a></p>
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