id sequence problem in sqlserver

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i create table name "clstbl":
column name:
cls_id varchar(10)
cls_name varchar(20)

when i input 20 data in this table and see data:
cls_id is display like:
1
10
11
12
13
14
.
.
.
2
20
3
4
5
6
7
8
8
9

how to solve it
number is in order ...

i use sql server 2008 RC2

Posted 9-Nov-13 6:00am

priyanshbhaliya

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OriginalGriff · Accepted Answer · 2013-11-09T06:25:00

Simplest solution is: don't use string based ID values to hold numeric values - use an int instead.

When you order anything string based, the ordering sequence is done by a character-byt-character comparison of the strings - in this scheme "19" comes before "2" because the character '1' comes before the character '2', and so on.

You can re-order strings to "work" in two ways:
1) Order the values converted to integers.
2) Store your values complete with leading zeros so they are all the same length.

But storing integers as integers is a much, much better idea!