Spinner with SQLite

Hello, good evening. In my project I have a spinner

<Spinner
    android:id="@+id/spnCategorie"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:entries="@array/categories_array"
    android:prompt="@string/categories_prompt" />

This spinner is responsible for adding the value in the CATEGORIE column in my database through the InsertProduct.class class. The categories that populate this spinner are as follows:

<string-array name="categories_array">
    <item>Mantimentos</item>
    <item>Açougue</item>
    <item>Peixaria</item>
    <item>Frios</item>
    <item>Hortifruti</item>
    <item>Café da Manhã</item>
    <item>Higiene</item>
    <item>Limpeza</item>
</string-array>

I'm converting the value of spinner to String to insert in banco de dados as follows. ( I do not know if it's the right way. )

Spinner CATEGORIE = (Spinner) findViewById(R.id.spnCategorie);
String stringCATEGORIE = CATEGORIE.getSelectedItem().toString();
...

I have another class ( AlterProduct.class ) responsible for changing the values of the products, I would like the spinner of the class AlterProduct.class to return the category saved in the database of data.

Ex: My product was inserted into the database with the Frios category, when the user clicked to change the product, it would return the Frios value in spinner of the AlterProduct.class strong>

Att.
Giovani Rodrigo