5b0f11b665
`WEEKDAY` in MySQL: returns an index from 0 to 6 for Monday to Sunday. `DAYOFWEEK` in MySQL: returns an index from 1 to 7 for Sunday to Saturday. Doris only have `DAYOFWEEK` function, so I add `WEEKDAY` function. Thanks for the following materials: - https://github.com/apache/incubator-doris/pull/6982/files - https://www.bilibili.com/video/BV1V44y1Y7Ro
1.9 KiB
1.9 KiB
title, language
| title | language |
|---|---|
| weekday | zh-CN |
weekday
Description
Syntax
INT WEEKDAY (DATETIME date)
WEEKDAY函数返回日期的工作日索引值，即星期一为0，星期二为1，星期日为6
参数为Date或者Datetime类型或者可以cast为Date或者Datetime类型的数字
注意WEEKDAY和DAYOFWEEK的区别：
+-----+-----+-----+-----+-----+-----+-----+
| Sun | Mon | Tues| Wed | Thur| Fri | Sat |
+-----+-----+-----+-----+-----+-----+-----+
weekday | 6 | 0 | 1 | 2 | 3 | 4 | 5 |
+-----+-----+-----+-----+-----+-----+-----+
dayofweek | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
+-----+-----+-----+-----+-----+-----+-----+
example
mysql> select weekday('2019-06-25');
+--------------------------------+
| weekday('2019-06-25 00:00:00') |
+--------------------------------+
| 1 |
+--------------------------------+
mysql> select weekday(cast(20190625 as date));
+---------------------------------+
| weekday(CAST(20190625 AS DATE)) |
+---------------------------------+
| 1 |
+---------------------------------+
keyword
WEEKDAY