Question

启动我正在处理的表有不一致，因为有一些我无法控制的空白租户值（供应商需要时间来修复它）。日期列也是varchar，就像它在实际表中的方式一样。再一次，我无法控制，并且为了报告的目的，选择最大日期，日期列需要从char更改为日期。数据库在SQL Server 2008上运行，因此无法使用LEAD功能

我有一个@rent表变量，如下所示，它保存租户租金的收费值。即每次租户租金更新\更改后，都会在@rent表中应用。在某些情况下，如果团队发现不正确的租金，则可以在一天内多次更新租金或在将来更改租金（请注意创建的date_sql）。 Date_changed_SQL表示实际应用租金的时间。 DATE_CHANGED_SQL列将用于创建From到To列。

在大多数情况下，会有重复DATE_CHANGED_SQL，但需要根据CREATED_DATE_SQL和最新TOT_DEB_Val的时间进行选择

示例数据：

Declare @rent TABLE 
    ([R23_SQL_ID] int, [PROP_CODE] int, [TENANT_NUMB] varchar(5), [TOT_DEB_VAL] int, [DATE_CHANGED_SQL] varchar(10), [TIME_CHANGED_SQL] varchar(5), [CREATED_DATE_SQL] varchar(10), [CREATED_TIME_SQL] varchar(5))

INSERT INTO @rent
    ([R23_SQL_ID], [PROP_CODE], [TENANT_NUMB], [TOT_DEB_VAL], [DATE_CHANGED_SQL], [TIME_CHANGED_SQL], [CREATED_DATE_SQL], [CREATED_TIME_SQL])
VALUES
    (12080, 2524, '41673', 77.49, '2011-07-28', '04:42', '2013-03-19', '04:42'),
    (12081, 2524, '41673', 79.42, '2012-02-02', '04:42', '2013-03-19', '04:42'),
    (12082, 2524, '41673', 79.95, '2012-08-16', '04:42', '2013-03-19', '04:42'),
    (21819, 2524, '', 67.91, '2015-01-15', '09:39', '2015-01-15', '09:39'),
    (21820, 2524, '51500', 67.91, '2015-01-16', '', '2015-01-15', '09:45'),
    (31729, 2524, '51500', 67.91, '2016-08-08', '', '2016-08-08', ''),
    (31152, 2524, '51500', 193.48, '2016-09-05', '10:53', '2016-09-05', '10:53'),
    (34215, 2524, '', 89.86, '2017-03-14', '18:53', '2017-03-14', '18:53'),
    (34216, 2524, '53407', 89.86, '2017-03-15', '', '2017-03-14', '18:53'),
    (34260, 2524, '53407', 89.86, '2017-03-15', '12:32', '2017-03-20', '12:32'),
     (29461, 1589, '33659', 151.78, '2000-08-21', '19:00', '2016-08-16', '19:00'),
    (8356, 1589, '33659', 136.84, '2011-05-26', '04:42', '2013-03-19', '04:42'),
    (8357, 1589, '33659', 144.36, '2011-11-24', '04:42', '2013-03-19', '04:42'),
    (8358, 1589, '33659', 147.91, '2012-05-31', '04:42', '2013-03-19', '04:42'),
    (8359, 1589, '33659', 151.78, '2012-11-29', '04:42', '2013-03-19', '04:42'),
    (14502, 1589, '33659', 200.00, '2013-08-12', '08:30', '2013-08-12', '08:30'),
    (15476, 1589, '', 157.68, '2013-11-22', '09:49', '2013-11-22', '09:49'),
    (17846, 1589, '50602', 157.68, '2013-11-29', '14:00', '2014-05-21', '14:00'),
    (18548, 1589, '50980', 157.68, '2014-06-18', '', '2014-06-18', '13:21'),
    (18547, 1589, '50980', 160.69, '2014-06-18', '13:21', '2014-06-18', '13:21'),
    (20351, 1589, '51343', 160.69, '2014-11-07', '', '2014-11-05', '14:20'),
    (24096, 1589, '51343', 163.74, '2015-07-27', '07:34', '2015-07-27', '07:34'),
    (26286, 1589, '51343', 165.01, '2016-01-25', '08:59', '2016-01-25', '08:59'),
    (28168, 1589, '51343', 166.31, '2016-06-13', '11:02', '2016-06-13', '11:02'),
    (32751, 1589, '51343', 166.80, '2016-12-12', '08:52', '2016-12-12', '08:52'),
    (34058, 1589, '53386', 110.91, '2017-03-07', '', '2017-03-07', '08:22'),
    (34057, 1589, '53386', 110.91, '2017-03-07', '08:17', '2017-03-07', '08:17'),
    (34189, 1589, '53386', 110.91, '2017-03-07', '13:19', '2017-03-13', '13:19')

要求：我正在尝试创建一个视图来显示租期（From和To），每个属性和租户的租金值如下所示

Desired Result Screenshot

Answer 1

以下似乎与你想要的非常接近。您可能需要稍微调整一下。根据你的数据集，它并没有给你很好的结果......但它非常接近，应该给你一些合作的东西。

/*cte assigns a row number to each entry, so we can join to the following row for that property*/
with cte as (
select 
    R23_SQL_ID,
    PROP_CODE,
    TENANT_NUMB,
    DATE_CHANGED_SQL,
    TOT_DEB_VAL,
    CREATED_DATE_SQL,
    ROW_NUMBER() OVER (PARTITION BY PROP_CODE ORDER BY DATE_CHANGED_SQL, TIME_CHANGED_SQL) as Seqn
from @rent
    --I wasn't sure about this where clause, you may want to get rid of it, but the results were closer to what you asked for with it in.
    where TENANT_NUMB <> ''
   )

select
    rentStart.R23_SQL_ID,
    rentStart.PROP_CODE,
    rentStart.TENANT_NUMB,
    rentStart.DATE_CHANGED_SQL as From_Date,
    --where you've got to the last row, I've put in "today" as the end date
    convert(char(10),isnull(dateadd(dd,-1,rentEnd.DATE_CHANGED_SQL), getdate()),121) as To_Date,
    rentStart.TOT_DEB_VAL,
    rentStart.CREATED_DATE_SQL
from
    cte as rentStart
    LEFT JOIN cte as rentEnd ON
        rentStart.Prop_Code = rentEnd .Prop_Code AND
        rentStart.Seqn + 1 = rentEnd .Seqn
where
    --Filtering to just the property you were showing
    rentStart.Prop_Code = 2524
    --This is the attempt to look only for the final change in the day. It may be better handled in the CTE rather than here.
AND (rentStart.DATE_CHANGED_SQL < rentEnd.Date_CHANGED_SQL OR rentEnd.DATE_CHANGED_SQL is null)

SQL Server 2008 - 从单个日期列创建自始至终日期

1 个答案: