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# Como usar DISTINCT e COUNT no Object Store

O [**Object Store**](/documentation/connectors-and-triggers/pt-br/connectors/structured-data/object-store.md) é um banco de dados não relacional, o que significa que seus comandos e processos diferem daqueles usados em bancos de dados relacionais. Este artigo explica como:

1. Agrupar itens idênticos no **Object Store** (semelhante ao comando `DISTINCT` em bancos de dados relacionais).
2. Contar o número de objetos armazenados.

## **Usando DISTINCT**

Para agrupar e recuperar valores únicos no conector **Object Store**:

1. Em **Operation**, selecione **Aggregate**.
2. Em **Query**, utilize o seguinte comando, substituindo `"$price"` pelo campo que deseja agrupar:

```php
[{
    $group: {_id: null, uniqueValues: {$addToSet: "$price"}}
}]
```

Essa operação retorna apenas os valores únicos. Por exemplo:

```json
{
  "data": [
    {
      "uniqueValues": [
        699,
        1620,
        5000
      ]
    }
  ],
  "rowCount": 0
}
```

## **Usando COUNT**

Para contar o número total de registros no **Object Store**:

1. Em **Operation**, selecione **Aggregate**.
2. Em **Query**, utilize o seguinte comando:

```php
[{
    $group: {_id: null, count: { $sum: 1 }}
}]
```

Essa operação retorna o número total de registros armazenados no Object Store.

Para mais detalhes, consulte a documentação do conector [**Object Store**](/documentation/connectors-and-triggers/pt-br/connectors/structured-data/object-store.md).


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