cubrid-set-drop.xml

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<refentry xml:id="function.cubrid-set-drop" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>cubrid_set_drop</refname>
  <refpurpose>Delete an element from set type column using OID</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>bool</type><methodname>cubrid_set_drop</methodname>
   <methodparam><type>resource</type><parameter>conn_identifier</parameter></methodparam>  
   <methodparam><type>string</type><parameter>oid</parameter></methodparam>  
   <methodparam><type>string</type><parameter>attr_name</parameter></methodparam>  
   <methodparam><type>string</type><parameter>set_element</parameter></methodparam> 
  </methodsynopsis>
  <para>
    The <function>cubrid_set_drop</function> function is used to delete an
    element that you request from the given set type (set, multiset) attribute
    of the database.
  </para>
 </refsect1>

<refsect1 role="parameters">
  &reftitle.parameters;
  <para>
  <variablelist>
    <varlistentry>
  <term><parameter>conn_identifier</parameter></term>
  <listitem><para>Connection identifier.</para></listitem>
   </varlistentry>
   <varlistentry>
  <term><parameter>oid</parameter></term>
  <listitem><para>OID of the instance you want to work with.</para></listitem>
   </varlistentry>
       <varlistentry>
  <term><parameter>attr_name</parameter></term>
  <listitem><para>Name of the attribute you want to delete an element from.</para></listitem>
   </varlistentry>
  <varlistentry>
  <term><parameter>set_element</parameter></term>
  <listitem><para>Content of the element you want to delete.</para></listitem>
   </varlistentry>
  </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   &return.success;
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example>
   <title><function>cubrid_set_drop</function> example</title>
   <programlisting role="php">
<![CDATA[
<?php
$conn = cubrid_connect("localhost", 33000, "demodb", "dba");

@cubrid_execute($conn, "DROP TABLE foo");
cubrid_execute($conn, "CREATE TABLE foo(a int AUTO_INCREMENT, b set(int), c list(int), d char(10))");
cubrid_execute($conn, "INSERT INTO foo(a, b, c, d) VALUES(1, {1,2,3}, {11,22,33,333}, 'a')");

$req = cubrid_execute($conn, "SELECT * FROM foo", CUBRID_INCLUDE_OID);

cubrid_move_cursor($req, 1, CUBRID_CURSOR_FIRST);
$oid = cubrid_current_oid($req);

$attr = cubrid_col_get($conn, $oid, "b");
var_dump($attr);

cubrid_set_drop($conn, $oid, "b", "1");

$attr = cubrid_col_get($conn, $oid, "b");
var_dump($attr);

cubrid_close_request($req);
cubrid_disconnect($conn);
?>
]]>
   </programlisting>
&example.outputs;
    <screen>
<![CDATA[
array(3) {
  [0]=>
  string(1) "1"
  [1]=>
  string(1) "2"
  [2]=>
  string(1) "3"
}
array(2) {
  [0]=>
  string(1) "2"
  [1]=>
  string(1) "3"
}
]]>
   </screen>
  </example>
 </refsect1>

  <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist> 
    <member><function>cubrid_set_add</function></member>  
   </simplelist>
  </para>
  </refsect1>

</refentry>

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