我们需要在周五到周五的基础上运行整个报表。我没有看到week()
这个功能。MYSQL星期五分组报告
假设我们有一个表Summary
,有两列 - count
和creation_date
。我需要根据星期五至星期五的creation_date
汇总计数。这需要运行几年。
任何建议,将不胜感激。
我们需要在周五到周五的基础上运行整个报表。我没有看到week()
这个功能。MYSQL星期五分组报告
假设我们有一个表Summary
,有两列 - count
和creation_date
。我需要根据星期五至星期五的creation_date
汇总计数。这需要运行几年。
任何建议,将不胜感激。
下面是一个查询告诉你上周五和下周四从今天
SELECT DATE(week_beg),DATE(week_end) FROM
(SELECT daywk_beg + INTERVAL 0 second week_beg,
daywk_beg + INTERVAL 604799 second week_end
FROM (SELECT (DATE(NOW()) - INTERVAL daysbacktoday DAY) daywk_beg
FROM (SELECT SUBSTR('2345601',wkndx,1) daysbacktoday
FROM (SELECT DAYOFWEEK(dt) wkndx FROM (SELECT DATE(NOW()) dt)
AAAAA) AAAA) AAA) AA) A;
,这是今天的结果
mysql> SELECT DATE(week_beg),DATE(week_end) FROM
-> (SELECT daywk_beg + INTERVAL 0 second week_beg,
-> daywk_beg + INTERVAL 604799 second week_end
-> FROM (SELECT (DATE(NOW()) - INTERVAL daysbacktoday DAY) daywk_beg
-> FROM (SELECT SUBSTR('2345601',wkndx,1) daysbacktoday
-> FROM (SELECT DAYOFWEEK(dt) wkndx FROM (SELECT DATE(NOW()) dt)
-> AAAAA) AAAA) AAA) AA) A;
+----------------+----------------+
| DATE(week_beg) | DATE(week_end) |
+----------------+----------------+
| 2013-03-22 | 2013-03-28 |
+----------------+----------------+
1 row in set (0.00 sec)
I wrote a query like this in the DBA StackExchange
下面是一个示例表
CREATE TABLE summary
(
id int not null auto_increment,
...
`count` int not null default 0,
creation_date date,
primary key (id)
);
为了让您的查询的基础上周五相符的结果,你需要这个
SELECT SUM(`count`) count_sum,friday FROM
(SELECT `count`,DATE(week_beg) friday
(SELECT daywk_beg + INTERVAL 0 second week_beg,
daywk_beg + INTERVAL 604799 second week_end,`count`
FROM (SELECT `count`,(DATE(NOW()) - INTERVAL daysbacktoday DAY) daywk_beg
FROM (SELECT `count`,SUBSTR('2345601',wkndx,1) daysbacktoday
FROM (SELECT `count`,DAYOFWEEK(dt) wkndx FROM
(SELECT `count`,creation_date FROM dt)
AAAAA) AAAA) AAA) AA) A) fri
GROUP BY friday;
试试看!
Select
count, creation_date,
from
(
SELECT
count, creation_date
DATEDIFF(week, '2013-03-30', date) AS WeekNumber
FROM Summary
)
GROUP BY
count,
creation_date,
WeekNumber
你会,你可以按
YEARWEEK(`date` - INTERVAL 5 DAY)
代替2013-03-30
我确实希望一次性生成报告。我不想有相同的工作。 – kuriouscoder 2013-03-26 17:55:23
@ kuriouscoder更新了我的答案 – 2013-03-26 18:26:28
输入开始日期,或者你可以用这个计算您start_week_date
和end_week_date
:
SELECT
`date`,
`date` - INTERVAL (DAYOFWEEK(`date`) + 1) % 7 DAY start_week_date,
`date` + INTERVAL 6 - (DAYOFWEEK(`date`) + 1) % 7 DAY end_week_date
FROM
dates
请参阅此fiddle。
所以您的查询可能是这样的:
SELECT
creation_date - INTERVAL (DAYOFWEEK(creation_date) + 1) % 7 DAY start_week_date,
SUM(count) --- or your aggregate function
FROM
Summary
GROUP BY
creation_date - INTERVAL (DAYOFWEEK(creation_date) + 1) % 7 DAY start_week_date
为什么week()不合适? – Strawberry 2013-03-26 17:29:54
周以周一,周一为起点。 – kuriouscoder 2013-03-26 17:55:43
不能用'my_date-INTERVAL 2 DAY'解决吗? – Strawberry 2013-03-26 21:34:52