Sql server 在同一个表中比较SQL Server中的两个句点

结果在2个选择需要它在一个结果

我有一个表需要比较同一分支机构去年的销售额，这是在SQL Server中。谢谢你的帮助

DECLARE @fdate as date
DECLARE @secdate as date

SET @fdate = '01-01-2020'; 
SET @secdate = (SELECT CONVERT(VARCHAR(10), getdate(), 110)); 

SELECT
    trans.STORE As 'Store Number' ,
    (SUM (trans.NETAMOUNT * -1)) AS sales2019
FROM
    RETAILTRANSACTIONSALESTRANS AS trans 
WHERE
    trans.TRANSDATE BETWEEN @fdate AND @secdate 
GROUP BY
    trans.STORE


SELECT
    trans.STORE AS 'Store Number' ,
    (SUM (trans.NETAMOUNT * -1)) AS sales2018
FROM
    RETAILTRANSACTIONSALESTRANS AS trans 
WHERE
    trans.TRANSDATE between  DATEADD(YEAR, -1, @fdate) and DATEADD(YEAR, -1, @secdate)  -- same reply Form Mr. marc_s
GROUP BY
    trans.STORE

---

我猜你想让两个结果同时出现

您可以使用条件case语句来实现这一点

DECLARE @fdate as date
DECLARE @secdate as date

SET @fdate = '20200101'; 
SET @secdate = GETDATE();

SELECT
    trans.STORE As 'Store Number' ,
    SUM (CASE WHEN trans.TRANSDATE BETWEEN @fdate 
                                       AND @secdate 
              THEN trans.NETAMOUNT * -1 END) AS sales2019,
    SUM (CASE WHEN trans.TRANSDATE BETWEEN DATEADD(YEAR, -1, @fdate) 
                                       AND DATEADD(YEAR, -1, @secdate) 
              THEN trans.NETAMOUNT * -1 END) AS sales2018
FROM
    RETAILTRANSACTIONSALESTRANS AS trans 
WHERE
    trans.TRANSDATE BETWEEN @fdate 
                        AND @secdate 
OR  trans.TRANSDATE BETWEEN DATEADD(YEAR, -1, @fdate) 
                        AND DATEADD(YEAR, -1, @secdate)
GROUP BY
    trans.STORE

注意：在分配给

@secdate

之前，不必将

GETDATE（）

转换为字符串，因为

@secdate

是一种

date

数据类型。

---

最好以YYYYMMDD格式指定日期字符串文字

不要使用

@fdate-365

-首先-不清楚这是365天、小时还是分钟。。。。另外：不处理闰年。使用

DATEADD（年份-1，@fdate）

insteadMr。marc_s Plz你能看到帖子吗？问题有两个结果，我需要一个结果