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---
title: IDBFactory
slug: Web/API/IDBFactory
translation_of: Web/API/IDBFactory
---
<p>{{APIRef("IndexedDB")}}</p>
<div>
<p>A interface IDBFactory, pertencente a <a href="/en-US/docs/IndexedDB">IndexedDB API</a> , permite que aplicativos acessem de forma assíncrona os bancos de dados indexados. O objeto que implementa a interface é o window.indexedDB, com este objeto é possível criar, acessar, modificar e excluir informações de um banco de dados. </p>
<p>{{AvailableInWorkers}}</p>
</div>
<h2 id="Métodos">Métodos</h2>
<dl>
<dt>{{domxref("IDBFactory.open")}}</dt>
<dd>Realizar a abertura de uma <a href="https://developer.mozilla.org/en-US/docs/IndexedDB#gloss_database_connection">conexão com uma base de dados</a>.</dd>
<dt>{{domxref("IDBFactory.deleteDatabase")}}</dt>
<dd>Remove uma base de dados.</dd>
<dt>{{domxref("IDBFactory.cmp")}}</dt>
<dd>Compara dois valores chaves e determina se elas são iguais e se não, quem é a maior.</dd>
</dl>
<h3 id="Métodos_Obsoletos">Métodos Obsoletos</h3>
<dl>
<dt><code><a href="/en-US/docs/Web/API/IDBFactory.open-obsolete">IDBFactory.open</a></code>, a versão original {{ obsolete_inline }}</dt>
<dd>Este método realizava <a href="https://developer.mozilla.org/en-US/docs/IndexedDB#gloss_database_connection">conexão com uma base de dados</a>, ele ainda é usado em alguns navegadores.</dd>
</dl>
<h2 id="Exemplo">Exemplo</h2>
<p>No código abaixo, realizamos uma conexão com um banco de dados e incluímos manipuladores para os casos de sucesso e erro. Você pode obter o <a class="external" href="https://github.com/mdn/to-do-notifications/tree/gh-pages">To-do Notifications</a> app como exemplo (<a class="external" href="http://mdn.github.io/to-do-notifications/">Visualizar exemplo</a>.)</p>
<pre class="brush:js;highlight:[10]">var note = document.querySelector("ul");
// In the following line, you should include the prefixes of implementations you want to test.
window.indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
// DON'T use "var indexedDB = ..." if you're not in a function.
// Moreover, you may need references to some window.IDB* objects:
window.IDBTransaction = window.IDBTransaction || window.webkitIDBTransaction || window.msIDBTransaction;
window.IDBKeyRange = window.IDBKeyRange || window.webkitIDBKeyRange || window.msIDBKeyRange;
// (Mozilla has never prefixed these objects, so we don't need window.mozIDB*)
// Let us open version 4 of our database
var DBOpenRequest = window.indexedDB.open("toDoList", 4);
// these two event handlers act on the database being opened successfully, or not
DBOpenRequest.onerror = function(event) {
note.innerHTML += '<li>Error loading database.</li>';
};
DBOpenRequest.onsuccess = function(event) {
note.innerHTML += '<li>Database initialised.</li>';
// store the result of opening the database in the db variable. This is used a lot later on, for opening transactions and suchlike.
db = DBOpenRequest.result;
};
</pre>
<h2 id="Specifications">Specifications</h2>
<table class="standard-table">
<tbody>
<tr>
<th scope="col">Specification</th>
<th scope="col">Status</th>
<th scope="col">Comment</th>
</tr>
<tr>
<td>{{SpecName('IndexedDB', '#idl-def-IDBFactory', 'IDBFactory')}}</td>
<td>{{Spec2('IndexedDB')}}</td>
<td> </td>
</tr>
<tr>
<td>{{SpecName("IndexedDB 2", "#factory-interface", "IDBFactory")}}</td>
<td>{{Spec2("IndexedDB 2")}}</td>
<td> </td>
</tr>
</tbody>
</table>
<h2 id="Browser_compatibility" name="Browser_compatibility">Browser compatibility</h2>
<div>{{CompatibilityTable}}</div>
<div id="compat-desktop">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Chrome</th>
<th>Edge</th>
<th>Firefox (Gecko)</th>
<th>Internet Explorer</th>
<th>Opera</th>
<th>Safari (WebKit)</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatChrome(23)}} {{property_prefix("webkit")}}<br>
{{CompatChrome(24)}} (unprefixed)<br>
{{CompatChrome(38)}} (prefixes deprecated)<br>
{{CompatChrome(57)}} (prefixes removed)</td>
<td>{{CompatVersionUnknown}}</td>
<td>10 {{property_prefix("moz")}}<br>
{{CompatGeckoDesktop("16.0")}}</td>
<td>10, partial</td>
<td>15<br>
{{CompatOpera(44)}} (prefixes removed)</td>
<td>7.1</td>
</tr>
<tr>
<td>Available in workers</td>
<td>{{CompatVersionUnknown}} (unprefixed)<br>
{{CompatChrome(38)}} (prefixes deprecated)<br>
{{CompatChrome(57)}} (prefixes removed)</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatGeckoMobile("37.0")}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatVersionUnknown}}<br>
{{CompatOpera(44)}} (prefixes removed)</td>
<td>{{CompatUnknown}}</td>
</tr>
<tr>
<td>Indexed Database 2.0</td>
<td>{{CompatChrome(58)}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatOpera(45)}}</td>
<td>{{CompatUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<div id="compat-mobile">
<table class="compat-table">
<tbody>
<tr>
<th>Feature</th>
<th>Android Webview</th>
<th>Chrome for Android</th>
<th>Edge</th>
<th>Firefox Mobile (Gecko)</th>
<th>Firefox OS</th>
<th>IE Phone</th>
<th>Opera Mobile</th>
<th>Safari Mobile</th>
</tr>
<tr>
<td>Basic support</td>
<td>{{CompatVersionUnknown}}<br>
{{CompatChrome(38)}} (prefixes deprecated)<br>
{{CompatChrome(57)}} (prefixes removed)</td>
<td>{{CompatVersionUnknown}}<br>
{{CompatChrome(38)}} (prefixes deprecated)<br>
{{CompatChrome(57)}} (prefixes removed)</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatGeckoMobile("22.0")}}</td>
<td>1.0.1</td>
<td>10</td>
<td>22<br>
{{CompatOperaMobile(44)}} (prefixes removed)</td>
<td>8</td>
</tr>
<tr>
<td>Available in workers</td>
<td>{{CompatVersionUnknown}} (unprefixed)<br>
{{CompatChrome(38)}} (prefixes deprecated)<br>
{{CompatChrome(57)}} (prefixes removed)</td>
<td>{{CompatVersionUnknown}} (unprefixed)<br>
{{CompatChrome(38)}} (prefixes deprecated)<br>
{{CompatChrome(57)}} (prefixes removed)</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatGeckoMobile("37.0")}}</td>
<td>{{CompatVersionUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatVersionUnknown}}<br>
{{CompatOperaMobile(44)}} (prefixes removed)</td>
<td>{{CompatUnknown}}</td>
</tr>
<tr>
<td>Indexed Database 2.0</td>
<td>{{CompatChrome(58)}}</td>
<td>{{CompatChrome(58)}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatUnknown}}</td>
<td>{{CompatOperaMobile(45)}}</td>
<td>{{CompatUnknown}}</td>
</tr>
</tbody>
</table>
</div>
<h2 id="See_also">See also</h2>
<ul>
<li><a href="/en-US/docs/Web/API/IndexedDB_API/Using_IndexedDB">Usando IndexedDB</a></li>
<li>Inicializando uma Transaction: {{domxref("IDBDatabase")}}</li>
<li>Usando uma Transaction: {{domxref("IDBTransaction")}}</li>
<li>Configurando um Intervalo de chaves: {{domxref("IDBKeyRange")}}</li>
<li>Recuperando e modificando dados: {{domxref("IDBObjectStore")}}</li>
<li>Usando cursors: {{domxref("IDBCursor")}}</li>
<li>Exemplo de referência: <a class="external" href="https://github.com/mdn/to-do-notifications/tree/gh-pages">To-do Notifications</a> (<a class="external" href="http://mdn.github.io/to-do-notifications/">Visualizar exemplo</a>.)</li>
</ul>
|
