1.本月第一天
select date_add(curdate(),interval-day(curdate())+1 day) as date
2.本月最后一天
SELECT last_day(curdate()) as date
3.当天日期
select curdate()
4.明天日期
select DATE_SUB(curdate(),INTERVAL -1 DAY) AS tomorrow
5.下个月第一天
select date_add(curdate() - day(curdate()) +1,interval 1 month )
6.当前月已过几天
select day(curdate())
7.当前月天数
select day(date_add( date_add(curdate(),interval 1 month),interval -day(curdate()) day ))
8.最近7天日期
SELECT @s :=@s + 1 as `index`, DATE(DATE_SUB(CURRENT_DATE, INTERVAL @s DAY)) AS `date`
FROM mysql.help_topic,(SELECT @s := -7) temp
WHERE @s < 0
ORDER BY 'date'
9.本周日期
SELECT @a :=@a + 1 as `index`, DATE(ADDDATE(CURRENT_DATE, INTERVAL @a DAY)) AS `date`
FROM mysql.help_topic,(SELECT @a := 0) temp
WHERE @a < 6 - WEEKDAY(CURRENT_DATE)
UNION
SELECT @s :=@s - 1 as `index`, DATE(DATE_SUB(CURRENT_DATE, INTERVAL @s DAY)) AS `date`
FROM mysql.help_topic,(SELECT @s := WEEKDAY(CURRENT_DATE) + 1) temp
WHERE @s > 0
ORDER BY `date`
10.当月所有日期
select date from (
SELECT DATE_FORMAT(DATE_SUB(last_day(curdate()), INTERVAL xc-1 day), '%Y-%m-%d') as date
FROM (
SELECT @xi:=@xi+1 as xc from
(SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6) xc1,
(SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6) xc2,
(SELECT @xi:=0) xc0
) xcxc) x0 where x0.date >= (select date_add(curdate(),interval-day(curdate())+1 day))
ORDER BY `date`
11.往后一个月日期
SET @days = TIMESTAMPDIFF( DAY, ADDDATE( date( now( ) ),- 31 ), now( ) );
SET @d = - 1;
SELECT
@d := @d + 1 AS 'index',
ADDDATE( ADDDATE( date( now( ) ),- 0), @d ) AS date
FROM
(
SELECT
a
FROM
( SELECT '1' AS a UNION SELECT '2' UNION SELECT '3' UNION SELECT '4' UNION SELECT '5' UNION SELECT '6' ) AS a
JOIN ( SELECT '1' UNION SELECT '2' UNION SELECT '3' UNION SELECT '4' UNION SELECT '5' UNION SELECT '6' ) AS b ON 1
LIMIT 31
) d
WHERE
@d < @days