Mysql查询时间区间日期列表实例代码

1、查询时间区间日期列表，不会由于数据表数据影响

select a.date 
from (
    select curdate() - interval (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) ) day as date
    from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as a
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as b
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as c
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as d
) a
where a.date between '2020-01-20' and '2021-12-24' order by a.date asc

 tips：如果要查询当前日期后面的数据 curdate()改为截止日期就好

2、创建视图可以公共使用

create view v_digits as
  select 0 as digit union all
  select 1 union all
  select 2 union all
  select 3 union all
  select 4 union all
  select 5 union all
  select 6 union all
  select 7 union all
  select 8 union all
  select 9;
 
create view v_numbers as
  select
    ones.digit + tens.digit * 10 + hundreds.digit * 100 + thousands.digit * 1000 as number
  from
    v_digits as ones,
    v_digits as tens,
    v_digits as hundreds,
    v_digits as thousands;
		
-- 生成的日期格式为  yyyy-mm-dd		
create view v_dates as
  select
    subdate(current_date(), number) as date
  from
    v_numbers
  union all
  select
    adddate(current_date(), number + 1) as date
  from
    v_numbers;
 
-- 生成的日期格式为 yyyy-mm
create view v_months as
  select
    date_format(subdate(current_date(), interval number month),'%y-%m')  as date
  from
    v_numbers
  union all
  select
    date_format(adddate(current_date(), interval number+1 month),"%y-%m") as date
  from
    v_numbers;

3、创建为视图之后，可以通过视图查询时间区间列表日期

select
  date
from
  v_dates
where
  date between '2020-01-20' and '2021-01-24'
order by
  date asc 

4、查询时间区间按月

select date_format(str_to_date (a.date,'%y-%m-%d'),"%y-%m") as date 
from (
    select '2011-12-24' - interval (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) ) month as date
    from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as a
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as b
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as c
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as d
) a
where a.date between '2010-01-20' and '2011-12-24' order by a.date asc;

附：在对mysql的时间进行区间查询的时候出现的问题

<if test="searchcondition.starttime!=null">
    <![cdata[ and select_data.data_time  >= #{searchcondition.starttime,jdbctype=timestamp} ]]>
</if>

<if test="searchcondition.stoptime!=null">
    <![cdata[ and select_data.data_time <= #{searchcondition.stoptime,jdbctype=timestamp} ]]>
</if>

在test中不能使用searchcondition.stoptime!=’ ‘这个判断会报错,上面的是标准的时间查询,自己做的时候总是会加上!=’ ‘这个条件.所以总是报错,记录一下.

总结

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