Question

我有日期格式问题。以下是我的查询。查询正在执行但没有结果。

SELECT a,b,c,DATE_FORMAT(Date_Rx_Written,'%m-%d-%Y') AS 'Date Rx Written',e,f,g,h 
FROM ksclient1003.prescriber_view 
WHERE DATE_FORMAT(Date_Rx_Written,'%m-%d-%Y')
BETWEEN coalesce(NULLIF('11-11-2008',' '),Date_RX_Written)
AND coalesce(NULLIF('11-11-2016',' '),Date_RX_Written) 
AND a=coalesce(NULLIF('Genene Radden',' '),a) 
AND b=coalesce(NULLIF('Filled',' '),b);

如果我执行部分工作正常，

SELECT a,b,c,DATE_FORMAT(Date_Rx_Written,'%m-%d-%Y') AS 'Date Rx Written',e,f,g,h
FROM ksclient1003.prescriber_view;

或简单地排除日期过滤器。

SELECT a,b,c,DATE_FORMAT(Date_Rx_Written,'%m-%d-%Y') AS 'Date Rx Written',e,f,g,h
FROM ksclient1003.prescriber_view 
WHERE a=coalesce(NULLIF('Genene Radden',' '),a)
AND b=coalesce(NULLIF('Filled',' '),b);

我尝试了不同的方法，例如在我只是传递Date_RX_Written的地方更改格式。

注意：

Answer 1

尝试

SELECT 
   a, b, c, 
   DATE_FORMAT(Date_Rx_Written,'%m-%d-%Y') as 'Date Rx Written',
   e,f,g,h 
FROM ksclient1003.prescriber_view 
WHERE 
   Date_Rx_Written BETWEEN '2008-11-11' AND '2016-11-11' 
   AND a='Genene Radden' 
   AND b='Filled';

Answer 2

找到解决方案..

select a,b,c,DATE_FORMAT(Date_Rx_Written,"%m-%d-%Y") as 'Date Rx Written'  ,d,e,f,g from ksclient1003.prescriber_view  WHERE Date_Rx_Written BETWEEN coalesce(NULLIF(STR_TO_DATE('31-12-2014' , "%d-%m-%Y"),' ')) and coalesce(NULLIF(STR_TO_DATE('31-12-2016' , "%d-%m-%Y"),' ')) and a=coalesce(NULLIF('Genene Radden',' '),a) and b=coalesce(NULLIF('Filled',' '),b);

查询没有给出期望的结果

2 个答案: