sorting an number in sql

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SQL Sorting :

Datatype varchar

Should sort by
1.aaaa
5.xx
11.bbbbbb
12
15. how can i get this sorting order

Wrong
1.aaaa
11.bbbbbb
12
15.
5.xx

Posted 5-Dec-13 23:31pm

patil.nitin8358

Updated 6-Dec-13 0:19am

v2

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Sebastian T Xavier 6-Dec-13 6:49am

don't repost

5 solutions

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BrishPandey · Answer 1 · 2013-12-06T01:25:00

Solution 5

create FUNCTION [dbo].[sortingfunction]
(
@column varchar(max)
)
RETURNS varchar(max)
AS
BEGIN
declare @num varchar(50)
declare @space varchar(50)
declare @index int = 1

set @num = LEFT(SUBSTRING(@column, PATINDEX('%[0-9.-]%', @ column), 8000), PATINDEX('%[^0-9.-]%', SUBSTRING(@column, PATINDEX('%[0-9.-]%', @ column), 8000) + 'X')-1)
set @space = replicate(' ', 20 - len(@num))

return replace(@column, @num, @space + @num)
END

----------------------------------------------------------------------
select from sampletable order by dbo.sortingfunction(key)

Posted 6-Dec-13 1:25am

BrishPandey

Comments

patil.nitin8358 6-Dec-13 7:46am

hello BrishPandey,

Thanks for the help , it solve my problem. good

Regards ,

nitin

patil.nitin8358 8-Dec-13 5:00am

hello BrishPandey,

function create query work well on local sql server 2008 R2 while on remote sql server 2005

it saying that

Msg 139, Level 15, State 1, Procedure sortingfunction, Line 0
Cannot assign a default value to a local variable.

regards,

nitin

patil.nitin8358 12-Dec-13 6:19am

hello BrishPandey,

above function is not working well

1
13.abc
2.1 abc
2.2
311.test

which is wrong , even though 13 is greater than 2.1 & 2.2 still displaying 13 ahead of 2.1 & 2.2

what changes should be done in function?

please help

regards,

nitin

phil.o · Answer 2 · 2013-12-05T23:35:00

Solution 1

You may refer to Sort string as number in sql server[^].

If the field only contains numbers, why using a string datatype instead of an integer one?

Posted 5-Dec-13 23:35pm

phil.o

♥…ЯҠ…♥ · Answer 3 · 2013-12-05T23:37:00

Solution 2

Hi Patil,

I hope you column data type is varchar, that is the reason sorting is done like what you have mentioned.
Here[^] you can find solution.

Hope this helps you a bit.

Regards,
RK

Posted 5-Dec-13 23:37pm

♥…ЯҠ…♥

Comments

patil.nitin8358 6-Dec-13 6:23am

hello master,

SELECT *
FROM table
ORDER BY CAST(SUBSTRING(column,LOCATE('.',column)+1) AS SIGNED)

here ,when i use this it gives error to me for locate function , i think it is for mysql

could u please suggest me any other solution for

Should sort by
1.aaaa
5.xx
11.bbbbbb
12
15. how can i get this sorting order

Wrong
1.aaaa
11.bbbbbb
12
15.
5.xx

Regrads,

nitin

BrishPandey · Answer 4 · 2013-12-06T00:27:00

Solution 3

hi ,

Try this

SQL

SELECT * FROM MyTable
ORDER BY CAST(amount AS Numeric(10,0)) DESC

Posted 6-Dec-13 0:27am

BrishPandey

Comments

patil.nitin8358 6-Dec-13 6:32am

Hello BrishPandey

column is varchar not an numeric

when i run ur suggester query it gives an error

Error converting data type varchar to numeric.

Thanks

Ashish_Agrawal · Answer 5 · 2013-12-06T00:56:00

Solution 4

how about this..

SQL

SELECT * FROM Table1
Order by
CASE  WHEN CHARINDEX('.',COL1) > 0
    THEN CAST(SUBSTRING(Col1,1, CHARINDEX('.',COL1)-1)  AS int)
    ELSE COL1 END

It is in sql server.

Posted 6-Dec-13 0:56am

Ashish_Agrawal

Comments

patil.nitin8358 6-Dec-13 7:04am

Hello Ashish_Agrawal,
it saying

Conversion failed when converting the varchar value '2MyDream' to data type int.

thanks

Ashish_Agrawal 6-Dec-13 7:54am

This query works with your example. Can you post me the column value where you are getting conversion failed issue?

patil.nitin8358 6-Dec-13 8:11am

Hello Ashish_Agrawal,

your query also solve my problem iff my column contain value of format
11.asd
2.s
3.

if i have column with value 2MyDream then it gives error

Conversion failed when converting the varchar value '2MyDream' to data type int.

Thanks for the help