TableSelect::groupBy

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TableSelect::groupBy — Définit les critères de regroupement de la sélection

Description

public mysql_xdevapi\TableSelect::groupBy(mixed $sort_expr): mysql_xdevapi\TableSelect

Définit un critère de regroupement pour le jeu de résultats.

Liste de paramètres

sort_expr: Le critère de regroupement.

Valeurs de retour

Un objet TableSelect.

Exemples

Exemple #1 Exemple de mysql_xdevapi\TableSelect::groupBy()

<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");

$session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
$session->sql("CREATE DATABASE addressbook")->execute();
$session->sql("CREATE TABLE addressbook.names(name text, age int)")->execute();
$session->sql("INSERT INTO addressbook.names values ('John', 42), ('Sam', 42)")->execute();
$session->sql("INSERT INTO addressbook.names values ('Suki', 31)")->execute();

$schema = $session->getSchema("addressbook");
$table  = $schema->getTable("names");

$result = $table->select('count(*) as count', 'age')
  ->groupBy('age')->orderBy('age asc')
  ->execute();

$row = $result->fetchAll();
print_r($row);
?>

Résultat de l'exemple ci-dessus est similaire à :

Array
(
    [0] => Array
        (
            [count] => 1
            [age] => 31
        )
    [1] => Array
        (
            [count] => 2
            [age] => 42
        )
)

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