Teach you how to convert SQL statements to TP5

The followingthinkphp frameworkThe tutorial column will give you a brief introduction on how to convert SQL statements into TP5. I hope it will be helpful to friends in need!

Teach you how to convert SQL statements into TP5?

Specific problem description:

Please help me I converted this native SQL statement into TP5. Thank you! It is Db::('name')->

'select a.id, a.title,a.create_time,a.is_solve,count(b.qid) as answer_count from fa_question a,fa_answer b where a.id=b.qid and a.is_solve=0 group by b.qid order by answer_count DESC LIMIT 6';

implementation method of this chain operation:

Db::table(['fa_question '=>'a','think_role'=>'b'])
    ->field('a.id, a.title, a.create_time, a.is_solve, count(b.qid) as answer_count)
    ->where(' a.id=b.qid and a.is_solve=0')
    ->group('b.qid')
    ->order('answer_count desc')
    ->limit(6)
    ->select()

Attached is the manual, please read more about the manual https ://www.kancloud.cn/manual/thinkphp5/135180

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