Doctrine\DBAL\Platforms\SQLServerPlatform::getVarcharTypeDeclarationSQLSnippet PHP Метод

    protected function getVarcharTypeDeclarationSQLSnippet($length, $fixed)
    {
        return $fixed ? $length ? 'NCHAR(' . $length . ')' : 'CHAR(255)' : ($length ? 'NVARCHAR(' . $length . ')' : 'NVARCHAR(255)');
    }