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<div id="function.odbc-primarykeys" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">odbc_primarykeys</h1>
  <p class="verinfo">(PHP 4, PHP 5, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">odbc_primarykeys</span> &mdash; <span class="dc-title">Gets the primary keys for a table</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.odbc-primarykeys-description">
  <h3 class="title">Опис</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>odbc_primarykeys</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">Odbc\Connection</span> <code class="parameter">$odbc</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><span class="type"><a href="language.types.null.php" class="type null">?</a></span><span class="type"><a href="language.types.string.php" class="type string">string</a></span></span> <code class="parameter">$catalog</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$schema</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type"><a href="language.types.string.php" class="type string">string</a></span> <code class="parameter">$table</code></span><br>): <span class="type"><span class="type">Odbc\Result</span>|<span class="type"><a href="language.types.singleton.php" class="type false">false</a></span></span></div>

  <p class="para rdfs-comment">
   Returns a result object that can be used to fetch the column names
   that comprise the primary key for a table.
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-function.odbc-primarykeys-parameters">
  <h3 class="title">Параметри</h3>
  <p class="para">
   <dl>
    
     <dt><code class="parameter">odbc</code></dt>
     <dd>
      <p class="para">Ідентифікатор з&#039;єднання ODBC.
Докладніше: <span class="function"><a href="function.odbc-connect.php" class="function">odbc_connect()</a></span>.</p>
     </dd>
    
    
     <dt><code class="parameter">catalog</code></dt>
     <dd>
      <p class="para">
       Каталог (&#039;qualifier&#039; мовою ODBC 2).
      </p>
     </dd>
    
    
     <dt><code class="parameter">schema</code></dt>
     <dd>
      <p class="para">
       Схема (&#039;owner&#039; мовою ODBC 2).
      </p>
     </dd>
    
    
     <dt><code class="parameter">table</code></dt>
     <dd>
      <p class="para">
      </p>
     </dd>
    
   </dl>
  </p>
 </div>

 <div class="refsect1 returnvalues" id="refsect1-function.odbc-primarykeys-returnvalues">
  <h3 class="title">Значення, що повертаються</h3>
  <p class="para">
   Returns an ODBC result object або <strong><code><a href="reserved.constants.php#constant.false">false</a></code></strong> в разі помилки.
  </p>
  <p class="para">
   The result set has the following columns:
   <ul class="itemizedlist">
    <li class="listitem"><span class="simpara"><code class="literal">TABLE_CAT</code></span></li>
    <li class="listitem"><span class="simpara"><code class="literal">TABLE_SCHEM</code></span></li>
    <li class="listitem"><span class="simpara"><code class="literal">TABLE_NAME</code></span></li>
    <li class="listitem"><span class="simpara"><code class="literal">COLUMN_NAME</code></span></li>
    <li class="listitem"><span class="simpara"><code class="literal">KEY_SEQ</code></span></li>
    <li class="listitem"><span class="simpara"><code class="literal">PK_NAME</code></span></li>
   </ul>
   Драйвер може оголошувати додаткові стовпці.
  </p>
  <p class="simpara">
   The result set is ordered by <code class="literal">TABLE_CAT</code>, <code class="literal">TABLE_SCHEM</code>,
   <code class="literal">TABLE_NAME</code> and <code class="literal">KEY_SEQ</code>.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.odbc-primarykeys-changelog">
  <h3 class="title">Журнал змін</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>Версія</th>
      <th>Опис</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
 <td>8.4.0</td>
 <td>
  <code class="parameter">odbc</code> expects an <span class="classname"><strong class="classname">Odbc\Connection</strong></span>
  instance now; previously, a <span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span> was expected.
 </td>
</tr>

     <tr>
 <td>8.4.0</td>
 <td>
  This function returns an <span class="classname"><strong class="classname">Odbc\Result</strong></span>
  instance now; previously, a <span class="type"><a href="language.types.resource.php" class="type resource">resource</a></span> was returned.
 </td>
</tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 examples" id="refsect1-function.odbc-primarykeys-examples">
  <h3 class="title">Приклади</h3>
  <div class="example" id="odbc-primarykeys.example.basic">
   <p><strong>Приклад #1 List primary Keys of a Column</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$conn </span><span style="color: #007700">= </span><span style="color: #0000BB">odbc_connect</span><span style="color: #007700">(</span><span style="color: #0000BB">$dsn</span><span style="color: #007700">, </span><span style="color: #0000BB">$user</span><span style="color: #007700">, </span><span style="color: #0000BB">$pass</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$primarykeys </span><span style="color: #007700">= </span><span style="color: #0000BB">odbc_primarykeys</span><span style="color: #007700">(</span><span style="color: #0000BB">$conn</span><span style="color: #007700">, </span><span style="color: #DD0000">'TutorialDB'</span><span style="color: #007700">, </span><span style="color: #DD0000">'dbo'</span><span style="color: #007700">, </span><span style="color: #DD0000">'TEST'</span><span style="color: #007700">);<br />while ((</span><span style="color: #0000BB">$row </span><span style="color: #007700">= </span><span style="color: #0000BB">odbc_fetch_array</span><span style="color: #007700">(</span><span style="color: #0000BB">$primarykeys</span><span style="color: #007700">))) {<br />    </span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$row</span><span style="color: #007700">);<br />    break; </span><span style="color: #FF8000">// further rows omitted for brevity<br /></span><span style="color: #007700">}<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>
   </div>

   <div class="example-contents"><p>Поданий вище приклад виведе щось
схоже на:</p></div>
   <div class="example-contents screen">
<div class="examplescode"><pre class="examplescode">Array
(
    [TABLE_CAT] =&gt; TutorialDB
    [TABLE_SCHEM] =&gt; dbo
    [TABLE_NAME] =&gt; TEST
    [COLUMN_NAME] =&gt; id
    [KEY_SEQ] =&gt; 1
    [PK_NAME] =&gt; PK__TEST__3213E83FE141F843
)</pre>
</div>
   </div>
  </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.odbc-primarykeys-seealso">
  <h3 class="title">Прогляньте також</h3>
  <p class="para">
   <ul class="simplelist">
    <li><span class="function"><a href="function.odbc-tables.php" class="function" rel="rdfs-seeAlso">odbc_tables()</a> - Get the list of table names stored in a specific data source</span></li>
    <li><span class="function"><a href="function.odbc-foreignkeys.php" class="function" rel="rdfs-seeAlso">odbc_foreignkeys()</a> - Retrieves a list of foreign keys</span></li>
   </ul>
  </p>
 </div>


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