numbers not inserting in ascending order into table

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SQL-Server-2005

int s=select isnull(max([rid]),0)+1 from roomdetails

(Note: Upto roomno 9 inserting correctly if i go 10,11 then its getting store in below row of roomno 1)

Create table roomdetails (roomno nvarchar(250))

insert into roomdetails(@roomno) values(s);
[ i am not suppose to change roomno into int]

Roomno
1
10 -- [wrongly stored here]
2
3
4
5
6
7
8
9
--[should come here]

Posted 18-Nov-12 23:38pm

Umapathi K

Updated 19-Nov-12 0:29am

v3

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2 solutions

Solution 1

Why not you selecting the record using order by clause?

SQL

Select [rid] From roomdetails Order By [rid]

Posted 18-Nov-12 23:43pm

Subrata.In

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MT_ · Accepted Answer · 2012-11-18T23:50:00

Solution 2

You mean where you select rows from roomdetails 10 comes after 1 and your orderby clause is on roomno?
Is your roomno an integar column? If not, then this will happen. For sorted string, it is 10 after 1 and not 2.

Posted 18-Nov-12 23:50pm

MT_

Comments

__TR__ 19-Nov-12 5:56am

My 5!

MT_ 19-Nov-12 5:59am

Thanks. :-)

Umapathi K 19-Nov-12 6:20am

you are correct roomno in nvarchar. but i am not suppose to change into int., how to handle this

MT_ 19-Nov-12 6:24am

I think a CAST in the order by clause should work order by cast(roomno as int)
If it doesn't paste your query in the question using "Improve Question". If it helps, mark the answer as solution and/or upvote.