Think\Db\Builder::delete PHP Метод

    public function delete($options)
    {
        $sql = str_replace(['%TABLE%', '%USING%', '%JOIN%', '%WHERE%', '%ORDER%', '%LIMIT%', '%LOCK%', '%COMMENT%'], [$this->parseTable($options['table'], $options), !empty($options['using']) ? ' USING ' . $this->parseTable($options['using'], $options) . ' ' : '', $this->parseJoin($options['join'], $options), $this->parseWhere($options['where'], $options), $this->parseOrder($options['order'], $options), $this->parseLimit($options['limit']), $this->parseLock($options['lock']), $this->parseComment($options['comment'])], $this->deleteSql);
        return $sql;
    }