SQL 以动态日期范围为轴心
SQL Pivot on Dynamic Date Range
我正尝试在 SSMS 中使用动态日期范围(之前 90 天)对日期进行计数,但我的日期在结果中是乱序的。有没有办法在此查询中放置 ORDER BY?或者,有人有更好的方法来调整动态日期范围吗?
declare @cols as nvarchar(max);
declare @query as nvarchar(max);
select @cols = stuff((select distinct
',' + quotename(ColumnDate)
from
[Database].[Schema].[ExampleTable] as et
for
xml path(''), type).value('.', 'nvarchar(max)'), 1, 1, '');
select @query = 'select *
from
(select et.Place
,et.ColumnDate
,et.ValueToAggregate
from
[Database].[Schema].[ExampleTable] as et) as t
pivot
(count(ValueToAggregate)
for ColumnDate in( ' + @cols + ')' + ') as p; ';
execute(@query);
The dates in my results are out of order...
Place |3/25/2021 |4/19/2021 |2/21/2021 |3/22/2021 |2/14/2021 |2/11/2021
Test_Facility_1 |6 |5 |0 |2 |0 |3
Test_Facility_2 |1 |0 |0 |2 |2 |2
Test_Facility_3 |0 |1 |0 |1 |1 |2
Test_Facility_4 |124 |111 |85 |83 |95 |97
您可以在 FROM
和 FOR XML
之间的第一个 SELECT 语句中使用 ORDER BY
。但是,在 order by 中确切使用哪个表达式可能取决于列 ColumnDate
的数据类型。如果它是一个日期列,那么你可以使用
ORDER BY ColumnDate
我正尝试在 SSMS 中使用动态日期范围(之前 90 天)对日期进行计数,但我的日期在结果中是乱序的。有没有办法在此查询中放置 ORDER BY?或者,有人有更好的方法来调整动态日期范围吗?
declare @cols as nvarchar(max);
declare @query as nvarchar(max);
select @cols = stuff((select distinct
',' + quotename(ColumnDate)
from
[Database].[Schema].[ExampleTable] as et
for
xml path(''), type).value('.', 'nvarchar(max)'), 1, 1, '');
select @query = 'select *
from
(select et.Place
,et.ColumnDate
,et.ValueToAggregate
from
[Database].[Schema].[ExampleTable] as et) as t
pivot
(count(ValueToAggregate)
for ColumnDate in( ' + @cols + ')' + ') as p; ';
execute(@query);
The dates in my results are out of order...
Place |3/25/2021 |4/19/2021 |2/21/2021 |3/22/2021 |2/14/2021 |2/11/2021
Test_Facility_1 |6 |5 |0 |2 |0 |3
Test_Facility_2 |1 |0 |0 |2 |2 |2
Test_Facility_3 |0 |1 |0 |1 |1 |2
Test_Facility_4 |124 |111 |85 |83 |95 |97
您可以在 FROM
和 FOR XML
之间的第一个 SELECT 语句中使用 ORDER BY
。但是,在 order by 中确切使用哪个表达式可能取决于列 ColumnDate
的数据类型。如果它是一个日期列,那么你可以使用
ORDER BY ColumnDate