Question

我有这张桌子：

count_0-10_days, amount_0-10_days, count_10-20_days, amount_10-20_days, count_20-30_days, amount_20-30_days

如何获得以下报告？

UNION

我目前使用.controller("photoCtrl", function($scope, $http) { $scope.images = []; $scope.getImages = function() { $http.get('https://api.myjson.com/bins/30vuu') .success(function(data) { $scope.images = data; }) } });并执行多个子查询，但我想知道是否有更好，更有效的方法吗？

Answer 1

您是否尝试在选择中使用Sum（Case）？如果您的日期是非标准日期格式，请务必使用正确的日期模式。没有数据样本，这是我能建议的最好的。下面是如何为0-10情况执行此操作，重复您想要的其他日期范围。

Select 
    SUM( CASE WHEN [date_time] between TO_DATE([date_time], 'date pattern') AND TO_DATE([date_time], 'date pattern')-10 THEN 1 ELSE 0 END ) AS 'count_0-10_days',
    SUM( CASE WHEN [date_time] between TO_DATE([date_time], 'date pattern') AND TO_DATE([date_time], 'date pattern')-10 THEN amount ELSE 0 END ) AS 'amount_0-10_days'
From [Table_name]

Answer 2

select start_date,end_date,(rownum-1)*10+1||'-'||rownum*10 days, amount 
from 
    (
        select dr.start_date,dr.end_date,sum(t.amount) amount
            from (
                    select ((trunc(to_date(<start_date>,'dd-mon-yyyy')))+(rownum-1)*10) start_date, 
                        ((trunc(to_date(<start_date>,'dd-mon-yyyy')))+(rownum)*10)-1 end_date
                    from dual connect by rownum < 366
                 ) dr, <table_name> t
        where
            to_date(trunc(t.date_time), 'dd-mon-yyyy') between dr.start_date and dr.end_date
        group by dr.start_date,dr.end_date
    );

SQL计数/汇总到多个组

2 个答案: