Question

我想按当前日期之后的日期过滤过期日期。问题在于当前数据的日期在三列中。 exp0year，exp0mo和exp0da。

我尝试放置多个where子句，说exp0mo > 4的问题使像1/1/2020这样的日期无效。

Select exp0yr,exp0mo,exp0da,policy0num,zip0post,add0line01,add0line03,add0line04,profit0ctr
from ni.pmsp0200
where exp0yr>118  and exp0mo>04 and exp0da>20 and profit0ctr='eoh'
group by exp0yr,exp0mo,exp0da,policy0num,zip0post,add0line01,add0line03,add0line04,profit0ctr

我希望得到05/21/2019之后的日期，但取而代之的是除01/01/2020-05/20/2020之外的所有日期。

Answer 1

如果您使用的是SQL Server 2012 + 您可以获取当前数据日期as follow

datefromparts(exp0yr, exp0mo, exp0da)

否则，请使用类似这样的东西：

 SELECT CAST(CONCAT(CAST(@exp0yr AS VARCHAR(4)), '-',CAST(exp0mo AS VARCHAR(2)), '-',CAST(exp0daAS VARCHAR(2))) AS DATE)

您的脚本变成这样的东西

declare @mydate as date
set @mydate='2019/05/21' --Put your target date here
    Select exp0yr,exp0mo,exp0da,policy0num,zip0post,add0line01,add0line03,add0line04,profit0ctr
    from ni.pmsp0200
    where datefromparts(exp0yr, exp0mo, exp0da)>@mydate and profit0ctr='eoh'
    group by exp0yr,exp0mo,exp0da,policy0num,zip0post,add0line01,add0line03,add0line04,profit0ctr

Answer 2

尝试这个

--Temp table 
CREATE TABLE #Test
(cYear  VARCHAR(4) NOT NULL, 
 cMonth VARCHAR(2) NOT NULL , 
 cDay   VARCHAR(2) NOT NULL 
);
--Sample data
INSERT INTO #Test
       SELECT '2019', 
              '04', 
              '01'
       UNION ALL
       SELECT '2018', 
              '06', 
              '01';
--Calculated column - you can define prefix, such as leading zeros
ALTER TABLE #TEST
ADD calcDate AS CYEAR + CMONTH +  CDAY PERSISTED


--Shows only one record
SELECT *
FROM #Test
WHERE calcDate BETWEEN '20190101' AND '20191231';

如何按当前日期之后的日期过滤？

2 个答案: