Question

我有以下查询，其中我正在尝试创建一个计算一年天数的字段。问题是，当我到2014年时，它一直在计算，我需要它从1开始。

SELECT
    IJDATE,
    ROW_NUMBER() OVER( ORDER BY IJDATE ) AS 'InvoiceDay'
FROM
    S2K_IJ
WHERE
    IJTYPE = '1'
AND
    YEAR(IJDATE) > 2012
GROUP BY
    IJDATE
ORDER BY
    IJDATE
GO

Answer 1

SELECT
    IJDATE,
    ROW_NUMBER() OVER( partition by year(IJDATE) ORDER BY IJDATE ) AS 'InvoiceDay'
FROM
    S2K_IJ
WHERE
    IJTYPE = '1'
AND
    YEAR(IJDATE) > 2012
GROUP BY
    IJDATE
ORDER BY
    IJDATE
GO

您需要按年份进行分区，以便从1开始计数。

按年份的T-SQL增量日期时间字段

1 个答案: