Question

我有以下查询来获取前45天的数据

SELECT evening + morning + calve_milk AS Total_Today, 
       CONVERT (VARCHAR(6), m_date, 6) AS Date 
FROM Status 
WHERE (m_date < (SELECT MAX(m_date) AS Expr1 FROM Status AS Status_2))
   AND (m_date > (SELECT MAX(m_date) AS Expr1 FROM Status AS Status_1) - 45) 
   AND (animal_code = @animal_code) 
GROUP BY evening + morning + calve_milk, m_date 
ORDER BY m_date

当检索数据时，日期列看起来像这样

Jan 01
Jan 02
Jan 03
Jan 04
ans so on till the jan ends
Feb 01
Feb 02
Feb 03

我的问题是，这可能会跳过重复的JAN和FEB，每个日期和日期应该看起来像这样

请任何人告诉我如何使用sql

Answer 1

可能，肯定，明智，可能不是。

您应该使用SQL获取数据并在前端应用程序中格式化数据（例如Reporting Services，Excel等）。

Answer 2

以下是如何做到这一点。这是另一个表的一个例子。它创造了一切。你可以运行它，看看它是如何工作的：

DROP TABLE CURSOR_EXAMPLE
GO
CREATE TABLE CURSOR_EXAMPLE
(TEXT VARCHAR(8),VALUE BIGINT)
GO
INSERT INTO CURSOR_EXAMPLE
VALUES ('Jan',1)
INSERT INTO CURSOR_EXAMPLE
VALUES ('Jan',2)
INSERT INTO CURSOR_EXAMPLE
VALUES ('Feb',1)
INSERT INTO CURSOR_EXAMPLE
VALUES ('Feb',2)
INSERT INTO CURSOR_EXAMPLE
VALUES ('Mar',1)
INSERT INTO CURSOR_EXAMPLE
VALUES ('Mar',2)
INSERT INTO CURSOR_EXAMPLE
VALUES ('Apr',1)
INSERT INTO CURSOR_EXAMPLE
VALUES ('Apr',2)
GO

DECLARE @var_Current_TEXT VARCHAR(8);
DECLARE @text VARCHAR(8);
DECLARE @value BIGINT;

CREATE TABLE #TempResult
(TEXT VARCHAR(8),VALUE BIGINT)


DECLARE cu_CURSOR_EXAMPLE CURSOR FOR  
SELECT 
    TEXT
    ,VALUE
FROM CURSOR_EXAMPLE

OPEN cu_CURSOR_EXAMPLE  
FETCH NEXT FROM cu_CURSOR_EXAMPLE INTO @text, @value 

SET @var_Current_TEXT = ''
WHILE @@FETCH_STATUS = 0  
BEGIN  
    IF (@var_Current_TEXT <> @text)
        INSERT INTO #TempResult
        VALUES (@text, @value); 
    IF  (@var_Current_TEXT = @text)
        INSERT INTO #TempResult
        VALUES ('', @value); 

   SET @var_Current_TEXT = @text
   FETCH NEXT FROM cu_CURSOR_EXAMPLE INTO @text, @value
END 
CLOSE cu_CURSOR_EXAMPLE  
DEALLOCATE cu_CURSOR_EXAMPLE

SELECT * FROM  #TempResult

DROP TABLE #TempResult

Answer 3

with CTE AS (
select mnth
,stats
,row_number() over(partition by mnth order by mnth) rn
from you_Table
)
select case when rn>1 THEN '' Else mnth END, stats
FROM CTE

SQL查询帮助必需

3 个答案: