drbd65446 2017-09-18 07:50
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Laravel RAW查询添加多列浮点值

I'm storing value into database like 9:30 and 1 (my datatype is float in database for this column), when i'm retrieving i cant able to add two numbers , it is printing like 10 but it must be in 10:30 , i'm using laravel to add these two column

     $get=DB::table('table_name')->select(DB::raw('sum(hours) AS hours'))
                                 ->get();

can anyone please solve my issue ??

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  • dongyuan8024 2017-09-18 08:27
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    The best thing to do is to change the datatype from float to integer. Generally in most programming and database level, float value is problematic and could also lead to precision issues/problems.

    So my proposal is:

    • Store the time in minutes (or the least unit based on your situation)
    • Retrieve it, and divide it by 60 then you have the right value without employing hacky and unstable ways to resolve it.

    I hope this is useful.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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