Question

我在MSSQL中的表中有以下行

 Person | value1 | value2 | value3 | value4

 John   |   4    |    7   |   1    |   2

我希望这行按照如下所示的值排序。

 Person | value2 | value1 | value4 | value3

 John   |   7    |    4   |   2    |   1

可能是我问了一个愚蠢的问题，我希望根据这些列中的值对列名进行排序。

我知道这可以使用查询

来实现

SELECT * 
FROM tableName 
ORDER BY value2, value1, value4, value3 DESC

但是当我更改任何列值时，我必须更改查询以将结果排序。

请帮忙......

Answer 1

-- sample data
declare @t table
(
    person varchar(50),
    value1 int,
    value2 int,
    value3 int,
    value4 int
)

insert into @t select 'John', 4, 7, 1, 2
insert into @t select 'Name1', 14, 7, 1, 16
insert into @t select 'Name2', 24, 8, 1, 2

-- query
select
    person, v1 = [1], v2 = [2], v3 = [3], v4 = [4]
from
(
    select person, rn = row_number() over(partition by person order by a desc), a 
    from @t t1
    unpivot 
    (
        a for b in (value1, value2, value3, value4)
    ) t2
) t1
pivot
(
    max(a) for rn in ([1], [2], [3], [4])
) t2

Answer 2

除非我遗漏了某些内容，否则你应该在select语句的末尾添加'order by person，value2，value1，value4，value3'。

Answer 3

我想你想要：

SELECT Person, Value2, Value1, Value4, Valuer
FROM YourTable

Answer 4

试试这个：

SELECT * FROM tableName ORDER BY value2, value1, value4, value3 DESC

SQL - 排序从表中选择

4 个答案: