sql - 如何透视下一个 ROW_NUMBER()

Question

我有一个由以下查询填充的临时表:

SELECT  att.property, att.stayDate, att.addedTimeStamp, att.rowNumber
    FROM
    (
    SELECT  RIGHT('000' + CAST(att.property AS VARCHAR(4)),4) AS property,
            CAST(att.stay_date AS DATE) AS stayDate,
            CAST(added_timestamp AS DATETIME) AS addedTimeStamp,
            ROW_NUMBER() OVER(PARTITION BY property, stay_date ORDER BY added_timestamp) AS rowNumber
        FROM dbo.tb_rm_portal_attention_days att
            WHERE att.revenue_initiative = 'Test'
    ) att

然后将以下内容放入临时表中:

property   stayDate     addedTimeStamp             rowNumber
0053       2020-03-20   2019-03-04 17:10:32.837    1
0053       2020-03-20   2019-03-05 17:10:29.480    2
0053       2020-03-20   2019-03-06 17:10:25.940    3
0053       2020-03-20   2019-03-07 17:10:21.930    4
0100       2020-03-25   2019-03-04 17:10:32.837    1
0100       2020-03-25   2019-03-05 17:10:29.480    2
0100       2020-03-25   2019-03-06 17:10:25.940    3
0100       2020-03-25   2019-03-07 17:10:21.930    4

离开这里，我想要属性、stayDate、addedTimeStamp，然后是下一个addedTimeStamp > 在组中，如果是返回 NULL 或其他什么的最大值...不确定这是否有意义...

我的最终目标是从临时表中获取以下内容:

property   stayDate      firstTimeStamp            secondTimeStamp
0053       2020-03-20    2019-03-04 17:10:32.837   2019-03-05 17:10:29.480
0053       2020-03-20    2019-03-05 17:10:29.480   2019-03-06 17:10:25.940
0053       2020-03-20    2019-03-06 17:10:25.940   2019-03-07 17:10:21.930
0053       2020-03-20    2019-03-06 17:10:25.940   NULL
0100       2020-03-25    2019-03-04 17:10:32.837   2019-03-05 17:10:29.480
0100       2020-03-25    2019-03-05 17:10:29.480   2019-03-06 17:10:25.940
0100       2020-03-25    2019-03-06 17:10:25.940   2019-03-07 17:10:21.930
0100       2020-03-25    2019-03-06 17:10:25.940   NULL

Answer 1

您需要 lead()，但不需要子查询:

SELECT RIGHT('000' + CAST(att.property AS VARCHAR(4)), 4) AS property,
       CAST(att.stay_date AS DATE) AS stayDate,
       CAST(added_timestamp AS DATETIME) AS firstTimeStamp,
       LEAD(added_timestamp) OVER (PARTITION BY property, stay_date ORDER BY added_timestamp) AS secondTimeStamp
FROM dbo.tb_rm_portal_attention_days att
WHERE att.revenue_initiative = 'Test'