title: Change format of 'timing show' or 'set timing on' in sqlplus (to increase precision)
body: <p>I found useful such setting:</p>
  
  <pre><code>set timing on;
  </code></pre>
  
  <p>or such coding technique:</p>
  
  <pre><code>timing start;
  select ...;
  timing stop;
  </code></pre>
  
  <p>But it output uses a few digits for second fractional part:</p>
  
  <pre><code>Затрач.время: 00:00:00.02
  </code></pre>
  
  <p>Is that possible to adjust output format of <strong>timing</strong> in Sql*PLUS?</p>
  
  <p>I want to add more digits to fractional part, like for timestamps:</p>
  
  <pre><code>alter session set NLS_TIMESTAMP_FORMAT = 'MI:SS.FF6';
  </code></pre>
  
  <p><strong>PS</strong> I use</p>
  
  <pre><code>select LAST_LOAD_TIME, ELAPSED_TIME, MODULE, SQL_TEXT elasped from v$sql
    order by LAST_LOAD_TIME desc
  </code></pre>
  
  <p>for high precision timing (microseconds) but it is inconvenient especially for PL/SQL.</p>