Sql 如何进行查询以比较今年与去年的销售额？

我对SQL比较陌生，我试图做一个简单的查询，看看今年同一天与去年同一天或理想情况下每周同一天的销售情况

我已经创建了以下查询，它当前基于单个集合日。我需要把这个移到今天的约会上，但我想我会在以后处理这个问题

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有人能告诉我如何在同一行上显示每个商店今年和去年的数据吗

i、 e

先谢谢你

迈克

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好的，请耐心听我说，这是我第一次尝试回答问题，而且我对SQL也很陌生。

我正在努力学习，但我想更多地参与其中。我相信这不是最有效的方式来完成你想做的事情，但就像我说的，我是个新手，这是我唯一知道的方式。我完全愿意接受纠正和帮助。谢谢

-- 1. Began by declaring the dates. 
-- 2. Then created a temp table.
-- 3. Inserted into the temp table
-- 4. Created JOINS to separate the dates you wanted. 
-- 5. SELECTED fields from the temp table for the desired output.

-- Step 1

DECLARE  @startDate1   DATETIME2 = '01/01/2014', -- Creating previous year
         @endDate1     DATETIME2 = '12/31/2014', -- Creating previous year
         @startDate2   DATETIME2 = '01/01/2015', -- Creating this year
         @endDate2     DATETIME2 = '12/31/2015'; -- Creating this year
-- Step 2

DECLARE @yearFigures TABLE (    -- Created temp table with your desired output
       StoreLocation VARCHAR(20),
       TransactionDt VARCHAR(10),
       PreviousYear VARCHAR(20),
       CurrentYear VARCHAR(20))

-- Step 3

INSERT INTO @yearFigures        -- Inserting into your temp table
SELECT DISTINCT
       strtrdecode,
       CONVERT( VARCHAR(10), dtmtradedate, 101),
       sales1.cs1,
       sales2.cs2
FROM DAILYSALES dls

-- Step 4

LEFT OUTER JOIN(
    SELECT cursales AS cs1
    FROM DAILYSALES dls
    WHERE dtmtradedate BETWEEN @startDate1 AND @endDate1
    GROUP BY cursales ) AS sales1 ON sales1.cursales = dls.cursales -- Year one
LEFT OUTER JOIN (
    SELECT cursales AS cs2
    FROM DAILYSALES dls
    WHERE dtmtradedate BETWEEN @startDate2 AND @endDate2
    GROUP BY cursales ) AS sales2 ON sales2.cursales = dls.cursales; -- Year two

-- Step 5

SELECT StoreLocation,
       TransactionDt,
       SalesValue,
       SalesValue2
FROM @yearFigures -- From here you're pulling from your temp table (your output)

你应该得到你想要的东西。左侧外部联接的独立销售值为年，并命名为年。我在我的一个dbo上运行了1行，得到了这个

StoreLocation  TransactionDt  PreviousYear   CurrentYear
AESKAGGS         03/14/2014     828.35         400.00

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再次对我放松点，伙计们。。我是个笨蛋

向我们展示您的表架构，并请使用您正在使用的SQL的相应版本进行标记。这似乎是一个非常愚蠢的问题，我在哪里可以找到表架构？没有愚蠢的问题，只有愚蠢的答案：-）。。。仅显示表名和列即可。表名：DAILYSALES，列：STRSALETYPE STRTRADECODE CURSALES DTMTRADEDATE INTTRANSNUMI已将此添加到上述问题中

TABLE_CATALOG   TABLE_SCHEMA    TABLE_NAME  COLUMN_NAME
> DRSData   dbo DAILYSALES  STRSALETYPE 
> DRSData   dbo DAILYSALES  STRTRADECODE
> DRSData   dbo DAILYSALES  CURSALES
> DRSData   dbo DAILYSALES  DTMTRADEDATE
> DRSData   dbo DAILYSALES  INTTRANSNUM



 *SELECT        strtradecode, dtmtradedate, sum(cursales) as [Actual SALES TY], '' as Target
    FROM            DAILYSALES 
                             where (STRSALETYPE = 'H' )and (DTMTRADEDATE BETWEEN CONVERT(DATETIME, '2015-06-01 00:00:00', 102) AND CONVERT(DATETIME, '2015-06-01 00:00:00', 
                             102))
                             group by strtradecode, dtmtradedate*

-- 1. Began by declaring the dates. 
-- 2. Then created a temp table.
-- 3. Inserted into the temp table
-- 4. Created JOINS to separate the dates you wanted. 
-- 5. SELECTED fields from the temp table for the desired output.

-- Step 1

DECLARE  @startDate1   DATETIME2 = '01/01/2014', -- Creating previous year
         @endDate1     DATETIME2 = '12/31/2014', -- Creating previous year
         @startDate2   DATETIME2 = '01/01/2015', -- Creating this year
         @endDate2     DATETIME2 = '12/31/2015'; -- Creating this year
-- Step 2

DECLARE @yearFigures TABLE (    -- Created temp table with your desired output
       StoreLocation VARCHAR(20),
       TransactionDt VARCHAR(10),
       PreviousYear VARCHAR(20),
       CurrentYear VARCHAR(20))

-- Step 3

INSERT INTO @yearFigures        -- Inserting into your temp table
SELECT DISTINCT
       strtrdecode,
       CONVERT( VARCHAR(10), dtmtradedate, 101),
       sales1.cs1,
       sales2.cs2
FROM DAILYSALES dls

-- Step 4

LEFT OUTER JOIN(
    SELECT cursales AS cs1
    FROM DAILYSALES dls
    WHERE dtmtradedate BETWEEN @startDate1 AND @endDate1
    GROUP BY cursales ) AS sales1 ON sales1.cursales = dls.cursales -- Year one
LEFT OUTER JOIN (
    SELECT cursales AS cs2
    FROM DAILYSALES dls
    WHERE dtmtradedate BETWEEN @startDate2 AND @endDate2
    GROUP BY cursales ) AS sales2 ON sales2.cursales = dls.cursales; -- Year two

-- Step 5

SELECT StoreLocation,
       TransactionDt,
       SalesValue,
       SalesValue2
FROM @yearFigures -- From here you're pulling from your temp table (your output)

StoreLocation  TransactionDt  PreviousYear   CurrentYear
AESKAGGS         03/14/2014     828.35         400.00