0
这里是我的表:如何分类时间戳?
+----+-----------------+
| id | timestamp |
+----+-----------------+
| 1 | 1452001861 | -- yesterday
| 2 | 1452088272 | -- today
| 3 | 1452088283 | -- today
| 4 | 1451915461 | -- last week
| 5 | 1452001861 | -- yesterday
| 6 | 1452088263 | -- today
| 7 | 1252388263 | -- out of {today, yesterday, last week}
| 8 | 1452088312 | -- today
| 9 | 1452001762 | -- yesterday
| 10 | 1222388263 | -- out of {today, yesterday, last week}
| 12 | 1451915459 | -- last week
+----+-----------------+
现在我要选择这样的:
+----+-----------------+---------------+
| id | timestamp | range |
+----+-----------------+---------------+
| 1 | 1452001861 | yesterday |
| 2 | 1452088272 | today |
| 3 | 1452088283 | today |
| 4 | 1451915461 | last week |
| 5 | 1452001861 | yesterday |
| 6 | 1452088263 | today |
| 7 | 1252388263 | out |
| 8 | 1452088312 | today |
| 9 | 1452001762 | yesterday |
| 10 | 1222388263 | out |
| 12 | 1451915459 | last week |
+----+-----------------+---------------+
// ^this column isn't a real column
嗯,有什么我能做的就是选择就在今天:
SELECT
id,
date_time
FROM
viewed
WHERE
DATE_FORMAT(FROM_UNIXTIME(`date_time`), '%Y-%m-%d') >= (DATE_FORMAT(NOW(), '%y-%m-%d') - INTERVAL 1 DAY)
正如我说,这个查询^今天选择时间戳。
我的问题:现在我想知道,我怎么能扩大我的查询{今天,昨天 - 上周}?
我不认为有一个内置的分级“今天”,“昨天”,“上周”在MySQL。所有你能做的就是计算今天以来的天数(类似'DATEDiFF(CURDATE(),timestamp)AS daysSinceToday'),然后让你的PHP脚本对它进行分类('if($ daysSinceToday == 0)// today // elseif ($ daysSinceToday == 1)//昨天// elseif($ daysSinceToday> 7)//最近7天//')。当你想像SO一样打印出来的时候,你还必须先让它们按MySQL排序。 –