我有2条记录,字段为“from_date”和“to_date”:
client
如果从日期搜索,如何获取记录2:
- Record 1 : from_date=2017-05-15 and to_date=2017-06-12
- Record 2 : from_date=2018-03-20 and to_date=2018-04-11
或
- 2018-03-01 and 2018-03-31?
或
- 2018-04-01 and 2018-04-30?
答案 0 :(得分:0)
这很简单:
SELECT *
FROM records
WHERE from_date >= @from_date
OR to_date <= @to_date
@from_date
和@to_date
只是你的变量。
我使用了OR
,因为您没有寻找包容性范围。这只是部分匹配。
您想要一个与此记录from_date=2018-03-20
和to_date=2018-04-11
让我们根据WHERE from_date >= @from_date OR to_date <= @to_date
@from_date = 2018-03-01 --false
@to_date = 2018-03-31 --true
--
@from_date = 2018-04-01 --true
@to_date = 2018-04-30 --false
--
@from_date = 2018-04-01 --true
@to_date = 2018-04-03 --true
这表明你只需要一个bounderies来匹配。
请注意,基于DBMS,日期比较可能会有所不同,但逻辑保持不变。
答案 1 :(得分:0)
试试这个样本:
Declare @date1 Date
Declare @date2 Date
set @date1 = <<give your first date>> 'yyyy-dd-mm
set @date2 = <<give your second date>> 'yyyy-dd-mm
SELECT * FROM tbldate WHERE CONVERT(DATE,@date1) BETWEEN from_date and to_date OR CONVERT(DATE,@date2) BETWEEN from_date and to_date
答案 2 :(得分:0)
oracle示例:
with
table1 as
( select 1 id, to_date('2017-05-15','YYYY-MM-DD') date_from, to_date('2017-06-12','YYYY-MM-DD') date_to from dual union all
select 2 id, to_date('2018-03-20','YYYY-MM-DD') date_from, to_date('2018-04-11','YYYY-MM-DD') date_to from dual )
select
*
from
table1
where
/*
to_date('2018-03-01','YYYY-MM-DD') < date_to
and to_date('2018-03-31','YYYY-MM-DD') > date_from
to_date('2018-04-01','YYYY-MM-DD') < date_to
and to_date('2018-04-30','YYYY-MM-DD') > date_from
*/
to_date('2018-04-01','YYYY-MM-DD') < date_to
and to_date('2018-04-03','YYYY-MM-DD') > date_from
;
答案 3 :(得分:0)
谢谢大家的回复。我找到了答案。
WHERE ((from_date BETWEEN {fromDate} AND {toDate} OR to_date BETWEEN {fromDate} AND {toDate} OR (from_date <= {fromDate} AND to_date >= {fromDate}))
如果使用CakePHP3:
->where([
'OR' => [
function($exp) use($fromDate,$toDate){
return $exp->between('from_date',$fromDate,$toDate,'date');
},
function($exp) use($fromDate,$toDate){
return $exp->between('to_date',$fromDate,$toDate,'date');
},
'AND' => [
'from_date <=' => $fromDate,
'to_date >=' => $fromDate
]
],
'from_date is not' => null
]);