php-doc-en/reference/oci8/functions/oci-set-prefetch.xml

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  <refentry id="function.oci-set-prefetch">
   <refnamediv>
    <refname>oci_set_prefetch</refname>
    <refpurpose>Sets number of rows to be prefetched</refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
     <methodsynopsis>
      <type>bool</type><methodname>oci_set_prefetch</methodname>
      <methodparam><type>resource</type><parameter>statement</parameter></methodparam>
      <methodparam choice="opt"><type>int</type><parameter>rows</parameter></methodparam>
     </methodsynopsis>
    <para>
     Sets the number of rows to be prefetched after successful call to
     <function>oci_execute</function>. The default value for
     <parameter>rows</parameter> is 1.
    </para>
    <note>
     <para>
      In PHP versions before 5.0.0 you must use <function>ocisetprefetch</function> instead. 
      This name still can be used, it was left as alias of
      <function>oci_set_prefetch</function> for downwards compatability. 
      This, however, is deprecated and not recommended.
     </para>
    </note>
    <para>
     &return.success;
    </para>
   </refsect1>
  </refentry>

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