获取两年之间的月份并获取每年所有月份的总和
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【中文标题】获取两年之间的月份并获取每年所有月份的总和【英文标题】：Get months between two years and get sum of all months per year 【发布时间】：2018-04-19 00:12:10 【问题描述】：我想获取两年之间的所有月份以及两年之间的所有月份，他们的所有数据将被汇总以获取每年的销售额。
这是我的表格截图：Screenshot
例如，我想获得 2016 年到 2017 年的年销售额，我需要将名称中包含 2016 年和 2017 年的所有列相加才能得到年销售额。我知道这张表不是正常化或正常的。但这张桌子不是我的。
这是我获取两个日期之间月份的示例代码：
$start = new DateTime($_POST["start"]);
$end = new DateTime($_POST["end"]);
$smonth = (int)$start->format('Y')*12+(int)$start->format('n');
$emonth = (int)$end->format('Y')*12+(int)$end->format('n');
$firstmonth = min($smonth, $emonth);
$lastmonth = max($smonth, $emonth);
$months = array();
for ($i = $firstmonth; $i <= $lastmonth; $i++)
$thism = new DateTime(sprintf('%04d-%02d-01', intdiv($i, 12), $i % 12));
$months[] = strtoupper($thism->format('M_Y'));
$m_total = implode(',', preg_replace('/^(.*)$/', 'SUM($1) AS $1', $months));
$m_average = implode(',', preg_replace('/^(.*)$/', 'AVG($1) AS $1', $months));
【问题讨论】：
很高兴看到 answer 被重新使用。但不清楚你在问什么。您想要 2016 年和 2017 年的销售额总和，还是 2016 年的销售额总和与 2017 年的销售额总和？你的平均代码也是如此。 @Nick 我想获取 2016 年和 2017 年的所有月份以及每年所有月份的总计。这意味着我需要总结从 JAN_2016 到 DEC_2016 的所有月份，以获得 2016 年的年销售额，2017 年、2018 年等也是如此。 @Nick BTW 你的回答对我帮助很大，谢谢 @Nick 请帮忙 @Nick 你能帮我获取两个日期之间的年份并将输出格式化为 (SUM(JAN_2017)+SUM(FEB_2017) AS 2017？ 【参考方案1】：这应该会给你你想要的。
$start = new DateTime('2016-04-20');
$end = new DateTime('2018-03-02');
$smonth = (int)$start->format('Y')*12+(int)$start->format('n');
$emonth = (int)$end->format('Y')*12+(int)$end->format('n');
$firstmonth = min($smonth, $emonth);
$lastmonth = max($smonth, $emonth);
$months = array();
$m_totals = array();
for ($m = $firstmonth; $m <= $lastmonth; $m++)
$year = intdiv($m, 12);
$thism = new DateTime(sprintf('%04d-%02d-01', $year, $m % 12));
$months[] = strtoupper($thism->format('M_Y'));
if ($m % 12 == 0)
// $m_totals[] = 'SUM(' . implode(',', $months) . ') AS SUM' . ($year - 1);
$m_totals[] = 'SUM(' . implode(') + SUM(', $months) . ') AS SUM' . ($year - 1);
$months = array();
if (count($months)) $m_totals[] = 'SUM(' . implode(') + SUM(', $months) . ') AS SUM' . $year;
$m_total = implode(', ', $m_totals);
echo "$m_total\n";
对于我使用的开始和结束日期，这将输出：
SUM(APR_2016) + SUM(MAY_2016) + SUM(JUN_2016) + SUM(JUL_2016) + SUM(AUG_2016) + SUM(SEP_2016) + SUM(OCT_2016) + SUM(NOV_2016) + SUM(DEC_2016) AS SUM2016,
SUM(JAN_2017) + SUM(FEB_2017) + SUM(MAR_2017) + SUM(APR_2017) + SUM(MAY_2017) + SUM(JUN_2017) + SUM(JUL_2017) + SUM(AUG_2017) + SUM(SEP_2017) + SUM(OCT_2017) + SUM(NOV_2017) + SUM(DEC_2017) AS SUM2017,
SUM(JAN_2018) + SUM(FEB_2018) + SUM(MAR_2018) AS SUM2018
要获取开始和结束年份的所有月份，只需更改这些行：
$smonth = (int)$start->format('Y')*12+1;
$emonth = (int)$end->format('Y')*12+12;
【讨论】：
非常感谢，我会尽快回复您 我只能得到2018年3月的数据，而不是1月到12月的数据？ 我想得到从一月到十二月的月份，不管开始或结束日期的月份是什么 非常感谢！【参考方案2】：在某些时候，您会后悔拥有一张难以查询的表。我不知道您是否想为此利用动态 sql，但以下 可能 有用。
SQL Fiddle
MySQL 5.6 架构设置：
CREATE TABLE Table1
(`DEC_2016` int, `JAN_2017` int, `FEB_2017` int, `MAR_2017` int, `APR_2017` int, `MAY_2017` int, `JUN_2017` int, `JUL_2017` int, `AUG_2017` int, `SEP_2017` int, `OCT_2017` int, `NOV_2017` int, `DEC_2017` int, `JAN_2018` int, `FEB_2018` int, `MAR_2018` int, `APR_2018` int, `MAY_2018` int, `JUN_2018` int, `JUL_2018` int, `AUG_2018` int, `SEP_2018` int, `OCT_2018` int, `NOV_2018` int, `DEC_2018` int, `JAN_2019` int)
;
INSERT INTO Table1
(`DEC_2016`, `JAN_2017`, `FEB_2017`, `MAR_2017`, `APR_2017`, `MAY_2017`, `JUN_2017`, `JUL_2017`, `AUG_2017`, `SEP_2017`, `OCT_2017`, `NOV_2017`, `DEC_2017`, `JAN_2018`, `FEB_2018`, `MAR_2018`, `APR_2018`, `MAY_2018`, `JUN_2018`, `JUL_2018`, `AUG_2018`, `SEP_2018`, `OCT_2018`, `NOV_2018`, `DEC_2018`, `JAN_2019`)
VALUES
(1000, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 100)
;
查询 1：
set @start := '2017-01-15'
select concat(
'select '
,(select group_concat(' ', fn, ' as ', fn)
from (
select concat(upper(left(DATE_FORMAT(dt, "%M"),3)),'_',DATE_FORMAT(dt, "%Y")) fn
from (
SELECT
n, DATE_FORMAT(@start, '%Y-%m-01') + interval n MONTH AS dt
from (
select 0 n union all select 1 n union all select 2 n union all select 3 n union all select 4 n union all select 5 n union all select 6 n union all select 7 n union all select 8 n union all select 9 n union all select 10 n union all select 11
) d1
) d2
) d3
)
, ', ('
, replace(
(select trim(LEADING ' + ' from group_concat(' + ', fn))
from (
select concat(upper(left(DATE_FORMAT(dt, "%M"),3)),'_',DATE_FORMAT(dt, "%Y")) fn
from (
SELECT
n, DATE_FORMAT(@start, '%Y-%m-01') + interval n MONTH AS dt
from (
select 0 n union all select 1 n union all select 2 n union all select 3 n union all select 4 n union all select 5 n union all select 6 n union all select 7 n union all select 8 n union all select 9 n union all select 10 n union all select 11
) d1
) d2
) d3
), ',','')
, ') as Y1, '
, (select group_concat(' ', fn, ' as ', fn)
from (
select concat(upper(left(DATE_FORMAT(dt, "%M"),3)),'_',DATE_FORMAT(dt, "%Y")) fn
from (
SELECT
n, DATE_FORMAT(@start, '%Y-%m-01') + interval n MONTH AS dt
from (
select 12 n union all select 13 n union all select 14 n union all select 15 n union all select 16 n union all select 17 n union all select 18 n union all select 19 n union all select 20 n union all select 21 n union all select 22 n union all select 23
) d1
) d2
) d3
)
, ', ('
, replace(
(select trim(LEADING ' + ' from group_concat(' + ', fn))
from (
select concat(upper(left(DATE_FORMAT(dt, "%M"),3)),'_',DATE_FORMAT(dt, "%Y")) fn
from (
SELECT
n, DATE_FORMAT(@start, '%Y-%m-01') + interval n MONTH AS dt
from (
select 12 n union all select 13 n union all select 14 n union all select 15 n union all select 16 n union all select 17 n union all select 18 n union all select 19 n union all select 20 n union all select 21 n union all select 22 n union all select 23
) d1
) d2
) d3
), ',','')
, ') as Y2 '
, ' from table1'
) as the_sql
Results：
| the dynamically generated sql is:
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| select JAN_2017 as JAN_2017, FEB_2017 as FEB_2017, MAR_2017 as MAR_2017, APR_2017 as APR_2017, MAY_2017 as MAY_2017, JUN_2017 as JUN_2017, JUL_2017 as JUL_2017, AUG_2017 as AUG_2017, SEP_2017 as SEP_2017, OCT_2017 as OCT_2017, NOV_2017 as NOV_2017, DEC_2017 as DEC_2017, (JAN_2017 + FEB_2017 + MAR_2017 + APR_2017 + MAY_2017 + JUN_2017 + JUL_2017 + AUG_2017 + SEP_2017 + OCT_2017 + NOV_2017 + DEC_2017) as Y1, JAN_2018 as JAN_2018, FEB_2018 as FEB_2018, MAR_2018 as MAR_2018, APR_2018 as APR_2018, MAY_2018 as MAY_2018, JUN_2018 as JUN_2018, JUL_2018 as JUL_2018, AUG_2018 as AUG_2018, SEP_2018 as SEP_2018, OCT_2018 as OCT_2018, NOV_2018 as NOV_2018, DEC_2018 as DEC_2018, (JAN_2018 + FEB_2018 + MAR_2018 + APR_2018 + MAY_2018 + JUN_2018 + JUL_2018 + AUG_2018 + SEP_2018 + OCT_2018 + NOV_2018 + DEC_2018) as Y2 from table1 |
when that is executed, then:：
| JAN_2017 | FEB_2017 | MAR_2017 | APR_2017 | MAY_2017 | JUN_2017 | JUL_2017 | AUG_2017 | SEP_2017 | OCT_2017 | NOV_2017 | DEC_2017 | Y1 | JAN_2018 | FEB_2018 | MAR_2018 | APR_2018 | MAY_2018 | JUN_2018 | JUL_2018 | AUG_2018 | SEP_2018 | OCT_2018 | NOV_2018 | DEC_2018 | Y2 |
|----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|----|----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|----------|----|
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 12 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 12 |
【讨论】：
你能不能简单点我只想得到这个格式 (SUM(JAN_2017)+SUM(FEB_2017+ SO ON) AS 2017, SO ON以上是关于获取两年之间的月份并获取每年所有月份的总和的主要内容，如果未能解决你的问题，请参考以下文章