Doctrine\DBAL\Platforms\SQLServerPlatform::getForeignKeyReferentialActionSQL PHP Method

    public function getForeignKeyReferentialActionSQL($action)
    {
        // RESTRICT is not supported, therefore falling back to NO ACTION.
        if (strtoupper($action) === 'RESTRICT') {
            return 'NO ACTION';
        }
        return parent::getForeignKeyReferentialActionSQL($action);
    }