Sql server 按T-SQL中值范围的数值分量排序_Sql Server_Tsql

Sql server 按T-SQL中值范围的数值分量排序

sql-server tsql

Sql server 按T-SQL中值范围的数值分量排序,sql-server,tsql,Sql Server,Tsql,这种情况： create table #scores (score int) insert into #scores values (1) insert into #scores values (1) insert into #scores values (2) insert into #scores values (3) insert into #scores values (7) insert into #scores values (14) insert into #scores val

这种情况：

create table #scores (score int)

insert into #scores values (1)
insert into #scores values (1)
insert into #scores values (2)
insert into #scores values (3)
insert into #scores values (7)
insert into #scores values (14)
insert into #scores values (14)

;WITH Ranges AS
(
    SELECT *
    ,CASE 
        WHEN score between 1 and 5
            THEN '1-5'
        WHEN score between 6 and 10
            THEN '6-10'
        WHEN score between 11 and 15
            THEN '11-15'
        END AS ScoreRange
    FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
FROM Ranges 
GROUP BY ScoreRange
ORDER BY ScoreRange

此数据中的结果：

Count   ScoreRange
2       11-15
4       1-9
1       6-10

有没有一种简单的方法可以让数据按分数范围排序，就好像它是数字而不是字符串一样？那么先是1-5，然后是6-10，然后是11-15等等

在这种情况下，我就是这么做的。当您想要以所需的方式输出数据时，这非常有用，我个人将其用于报告输出或不具备任何排序能力的网格

;WITH Ranges AS
(
    SELECT *
    ,CASE 
        WHEN score between 1 and 5
            THEN '1-5'
        WHEN score between 6 and 10
            THEN '6-10'
        WHEN score between 11 and 15
            THEN '11-15'
        END AS ScoreRange
    FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
FROM Ranges 
GROUP BY ScoreRange
ORDER BY LEN(ScoreRange),
         ScoreRange

这就是我在这种情况下所做的。当您想要以所需的方式输出数据时，这非常有用，我个人将其用于报告输出或不具备任何排序能力的网格

;WITH Ranges AS
(
    SELECT *
    ,CASE 
        WHEN score between 1 and 5
            THEN '1-5'
        WHEN score between 6 and 10
            THEN '6-10'
        WHEN score between 11 and 15
            THEN '11-15'
        END AS ScoreRange
    FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
FROM Ranges 
GROUP BY ScoreRange
ORDER BY LEN(ScoreRange),
         ScoreRange

试试这个：

;WITH Ranges AS
(
    SELECT *
    ,CASE 
        WHEN score between 1 and 5
            THEN '1-5'
        WHEN score between 6 and 10
            THEN '6-10'
        WHEN score between 11 and 15
            THEN '11-15'
        END AS ScoreRange
    FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
FROM Ranges 
GROUP BY ScoreRange
ORDER BY CASE ScoreRange 
                WHEN '1-5' THEN 1 
                WHEN '6-10' THEN 2
                ELSE 3
        END

试试这个：

;WITH Ranges AS
(
    SELECT *
    ,CASE 
        WHEN score between 1 and 5
            THEN '1-5'
        WHEN score between 6 and 10
            THEN '6-10'
        WHEN score between 11 and 15
            THEN '11-15'
        END AS ScoreRange
    FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
FROM Ranges 
GROUP BY ScoreRange
ORDER BY CASE ScoreRange 
                WHEN '1-5' THEN 1 
                WHEN '6-10' THEN 2
                ELSE 3
        END

为什么不呢

按强制转换顺序（子字符串（ScoreRange，0，charindex（'-'，ScoreRange，0））作为INT）

试试这个

;WITH Ranges AS
(
    SELECT *
    ,CASE 
        WHEN score between 1 and 5
            THEN '1-5'
        WHEN score between 6 and 10
            THEN '6-10'
        WHEN score between 11 and 15
            THEN '11-15'
        END AS ScoreRange
    FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
FROM Ranges 
GROUP BY ScoreRange
ORDER BY CAST(SUBSTRING(ScoreRange, 0, charindex('-', ScoreRange, 0)) AS INT)

为什么不呢

按强制转换顺序（子字符串（ScoreRange，0，charindex（'-'，ScoreRange，0））作为INT）

试试这个

;WITH Ranges AS
(
    SELECT *
    ,CASE 
        WHEN score between 1 and 5
            THEN '1-5'
        WHEN score between 6 and 10
            THEN '6-10'
        WHEN score between 11 and 15
            THEN '11-15'
        END AS ScoreRange
    FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
FROM Ranges 
GROUP BY ScoreRange
ORDER BY CAST(SUBSTRING(ScoreRange, 0, charindex('-', ScoreRange, 0)) AS INT)

最简单的方法就是：

ORDER BY MIN(score)

也就是说，从范围中选择任意分数并按其顺序排列。

最简单的方法是：

ORDER BY MIN(score)

也就是说，从范围中选择一个任意分数，并按其排序。

因为

scoresrange

是一个字符串，我们可以使用字符串/单词排序而不是数字排序

在这种排序形式中，数字在字母和字符之前，因此

在

1-

和

6-

之前，而

1-

在

6-

之前

这给了我们：

11-15
1-5
6-10

如果

ScoreRange

值的前缀改为零

（1-5->01-05）

排序会发生变化

使用相同的字符串/单词排序

01-

位于

05-

之前，

05-

位于

10-

之前

保留数字的语义（

在

之前，在

之前），但这在字符串/单词比较下起作用

此方法适用于小于等于99的所有值；如果最大值更高，请添加额外的零：

您的查询现在变成：

;WITH Ranges AS
(
     SELECT *,
            CASE 
                 WHEN score between 1 and 5 THEN '01-05'
                 WHEN score between 6 and 10 THEN '06-10'
                 WHEN score between 11 and 15 THEN '11-15'
            END AS ScoreRange
       FROM #scores
)
SELECT Count = COUNT(*), ScoreRange
  FROM Ranges 
 GROUP BY ScoreRange
 ORDER BY ScoreRange

请参阅我的SQL FIDLE:

因为

ScoreRange