/**
* create sql string
*
* @return string
*/
public function fetch()
{
$content = isset($this->table) ? sprintf($this->patterns['create'], $this->table) : '';
foreach (Blueprint::getCommand() as $command) {
$content .= $command->rende();
}
$content = rtrim($content, ',');
$content .= sprintf($this->patterns['end'], $this->charset);
return $content;
}