title: PROC compiler fails for connect with prior in case using 'NOCYCLE'
body: <p>I am very new to PROC and I was compiling following query in .pc file, </p>
  
  <pre><code>`
  SELECT * FROM CUST
  WHERE CUSTOMER_ID = :sqli_customer_id
  START WITH SUBSCRIBER_NO = :sqli_subscriber_no
  CONNECT BY NOCYCLE PRIOR PRV_CTN = SUBSCRIBER_NO
  ORDER BY ROWNUM DESC
  `
  </code></pre>
  
  <p>following query fails to compile in PROC complier 
  but when I remove the <strong><code>NOCYCLE</code></strong> from query, file gets successfully compiled.</p>
  
  <p>I get following error with <code>NOCYCLE</code>:</p>
  
  <pre><code>PCC-S-02201, Encountered the symbol "PRIOR" when expecting one of the following:
     = ( * &lt; &gt; + - / . @ ^= | != &lt;= &gt;= &lt;&gt; at, not, between, in, is, like, day, hour, minute, month, second, year, 
  The symbol "*" was substituted for "PRIOR" to continue.
  </code></pre>
  
  <p>`</p>
  
  <p>Any suggestion will be helpful.</p>
  
  <p>Thanks,</p>
  
  <p>Nitin T.</p>