在数据库中排序项目符号

Question

我[datatype:varchar(50)]在数据库(SQL Server 2008)中有一列具有如下所示的值:

1
2
1.1.11
4.1
5
2.1
1.1
4
1.2.1
4.2.2
4.3
4.2
4.3.1
4.2.1
11.2
1.2.4
4.4

这些是我记录的编号项目符号我需要将它们排序为按顺序对所有记录进行分组 1,1.1,1.1.1,2,3.1,4,10.1,11.1....

请帮助我这方面.

Answer 1

WITH T(YourColumn) AS
(
SELECT '1' UNION ALL
SELECT '2' UNION ALL
SELECT '1.1.11' UNION ALL
SELECT '4.1' UNION ALL
SELECT '5' UNION ALL
SELECT '2.1' UNION ALL
SELECT '1.1' UNION ALL
SELECT '4' UNION ALL
SELECT '1.2.1' UNION ALL
SELECT '4.2.2' UNION ALL
SELECT '4.3' UNION ALL
SELECT '4.2' UNION ALL
SELECT '4.3.1' UNION ALL
SELECT '4.2.1' UNION ALL
SELECT '11.2' UNION ALL
SELECT '1.2.4' UNION ALL
SELECT '4.4'
)
SELECT *
FROM T 
ORDER BY CAST('/' + YourColumn + '/' AS HIERARCHYID)

返回

YourColumn
----------
1
1.1
1.1.11
1.2.1
1.2.4
2
2.1
4
4.1
4.2
4.2.1
4.2.2
4.3
4.3.1
4.4
5
11.2

这就是你需要的吗？