答案 0 :(得分：8)
您可以使用varchar列
你可以点这样订购
SELECT *
FROM t_version
ORDER BY CAST('/' + vid + '/' AS HIERARCHYID)
SQL小提琴今天不起作用，其他明智的我可以展示演示
请运行此测试
SELECT * FROM
( VALUES
( '1.0.0.0' ),
( '11.0.0.0' ),
('12.0.0.0'),
('2.0.0.0') ) AS vid ( vid )
ORDER BY CAST('/' + vid + '/' AS HIERARCHYID)
答案 1 :(得分：7)
只需将其存储为普通varchar，这适用于最多4个部分的版本，使用PARSENAME将字符串和顺序拆分为4个单独的列。
即
ORDER BY PARSENAME(version,4),
PARSENAME(version,3),
PARSENAME(version,2),
PARSENAME(version,1)
答案 2 :(得分：0)
为了支持混合长度版本之间的排序（例如'1.2'与'1.2.3.4'），可以执行到十进制的映射（作为内联表值函数）。
create function Common.ufn_OrderableVersion(@pVersion nvarchar(100))
returns table
as
/*---------------------------------------------------------------------------------------------------------------------
Purpose: Provide a mapping from Versions of the form 'a.b.c.d', 'a.b.c, 'a.b', 'a', null to
an orderable decimal(25, 0)
Since Parsename() doesn't apply easily to mixed length comparisions (1.2 vs 1.2.3.4)
Test Cases:
select * from Common.ufn_OrderableVersion(null); -- null
select * from Common.ufn_OrderableVersion('0'); -- 1000000000000000000000000
select * from Common.ufn_OrderableVersion('1'); -- 1000001000000000000000000
select * from Common.ufn_OrderableVersion('1.2.3.4'); -- 1000001000002000003000004
select Version
from
(
select '1.3.5.3' as Version
union all
select '1.2.5.3' as Version
union all
select '1.1.5.3' as Version
union all
select '1.3.5.2' as Version
union all
select null as Version
union all
select '' as Version
union all
select '2' as Version
union all
select '1.2' as Version
union all
select '1' as Version
) v
order by (select Value from Common.ufn_OrderableVersion(Version))
Modified By Description
---------- -------------- ---------------------------------------------------------------------------------------
2015.08.24 crokusek Initial Version
---------------------------------------------------------------------------------------------------------------------*/
return
-- 25 = 1 + VersionPositions * MaxDigitsPerSegment
select convert(decimal(25,0), '1' +
stuff((select format(Value, '000000')
from
(
select convert(int, Value) as Value, RowNumber
-- Support empty string and partial versions. Null maps to null
from Common.ufn_SplitUsingXml(@pVersion + '.0.0.0.0', '.') -- pad right
where RowNumber <= 4 -- trim right
) as v
order by RowNumber
for xml path ('')
), 1, 0, '')
) as Value
go
相关性：
create function Common.ufn_SplitUsingXml
(
@pList nvarchar(max),
@pDelimiter nvarchar(255)
)
returns table
as
/*---------------------------------------------------------------------------------------------------------------------
Purpose: Split an Identifier using XML as an inline table valued function.
Using the SQL Server CLR (C#) capability would be the most efficient way to support this.
Warnings: Will not work if the input contains special XML characters like '<', '>' or '&'.
Caller must add "option (maxrecursion 0)" for lists greater than 100 (it can't be added within the ufn)
Modified By Description
---------- -------------- ---------------------------------------------------------------------------------------
2015.08.24 inet http://sqlperformance.com/2012/07/t-sql-queries/split-strings
---------------------------------------------------------------------------------------------------------------------*/
return
(
select Value = y.i.value('(./text())[1]', 'nvarchar(4000)'),
row_number() over (order by (select null)) as RowNumber
from
(
select x = convert(XML, '<i>'
+ replace(@pList, @pDelimiter, '</i><i>')
+ '</i>').query('.')
) AS a cross apply x.nodes('i') AS y(i)
-- option (maxrecursion 0) must be added by caller for lists greater than 100
);
go
比较：
alter function Common.ufn_CompareVersions
(
@pVersionA nvarchar(100),
@pVersionB nvarchar(100)
)
returns table
as
/*---------------------------------------------------------------------------------------------------------------------
Purpose: Compare Version of the form 'A.B.C.D'.
Comparing versions of different lengths is also supported 'A.B'.
Test Cases:
select Result from Common.ufn_CompareVersions('1', null) -- 1
select Result from Common.ufn_CompareVersions(null, '1') -- -1
select Result from Common.ufn_CompareVersions('1', '1') -- 0
select Result from Common.ufn_CompareVersions('1', '2') -- -1
select Result from Common.ufn_CompareVersions('2', '1') -- 1
select Result from Common.ufn_CompareVersions('1', '1.2') -- -1
select Result from Common.ufn_CompareVersions('1.2', '1') -- 1
select Result from Common.ufn_CompareVersions('1.2.3.4', '1.2.3.4') -- 0
select Result from Common.ufn_CompareVersions('1.2.3', '1.2.3.4') -- -1
select Result from Common.ufn_CompareVersions('1.2.3.4', '1.2.3') -- 1
select Result from Common.ufn_CompareVersions('1.9.3.4', '1.2.3.4') -- 1
select Result from Common.ufn_CompareVersions('1.2.3.4', '1.9.3.4') -- -1
select Result from Common.ufn_CompareVersions('1.002', '1.2') -- 0
select Result from Common.ufn_CompareVersions('1.2', '1.2.0') -- 0
Modified By Description
---------- ----------- ------------------------------------------------------------------------------------------
2015.08.24 crokusek Initial Version
---------------------------------------------------------------------------------------------------------------------*/
return
with Compares as
(
select (select IsNull(Value, 0) from Common.ufn_OrderableVersion(@pVersionA)) as A,
(select IsNull(Value, 0) from Common.ufn_OrderableVersion(@pVersionB)) as B
)
select case when A > B then 1
when A < B then -1
else 0
end as Result
from Compares
go