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    CollectionFind::having

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    CollectionFind::having — Set condition for aggregate functions

    Descrizione

    public mysql_xdevapi\CollectionFind::having(string $sort_expr): mysql_xdevapi\CollectionFind

    This function can be used after the 'field' operation in order to make a selection on the documents to extract.

    Elenco dei parametri

    sort_expr

    This must be a valid SQL expression, the use of aggreate functions is allowed

    Valori restituiti

    CollectionFind object that can be used for further processing

    Esempi

    Example #1 mysql_xdevapi\CollectionFind::having() example

    <?php

    //Assuming $coll is a valid Collection object

    //Find all the documents for which the 'age' is greather than 40,
    //Only the columns 'name' and 'age' are returned in the Result object
    $res = $coll->find()->fields(['name','age'])->having('age > 40')->execute();

    ?>
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