duan2891 2018-02-28 09:21
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Laravel数据库过滤器总数大于n

How can I filter out only results when total is greater than n? other words only IPs with more wisits than n (say 500)

I tried ->where('total','>',500) but it didn't work

Thank you

$visits = DB::table('visits')
    ->select('ip_address',DB::raw('count(*) as total'))
    ->where('timestamp', '>=',\Carbon\Carbon::now()->startOfDay())
    ->groupBy('ip_address')
    ->orderBy('total', 'desc')
    ->get();
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2条回答 默认 最新

  • doujia1939 2018-02-28 09:25
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    WHERE cannot be used on grouped item (such as count(*)) whereas HAVING can. You can refer WHERE vs HAVING question to understand more details,

    You have to use having

    ->having('total', '>', 100)
    

    optionally in your case you can use havingRaw

    ->havingRaw('count(*) > 2500')
    ->havingRaw('total > 2500')
    

    ref : https://laravel.com/docs/5.6/queries

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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