Split string in SQL

I have the following input string

@instring = '02542577,02028900,01228136'

This has to split like @instring =  ( '2542577', '2028900', '1228136' )  in Sql server .  

I know there is better way to split it to table of values and use it in sql. but the above mentioned formatted string has to passed to third party application.
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John GobertEnterprise Systems ConsultantCommented:
I'm sure there are many different opinions out there but I'd suggest building a function that you can call to do this.  I've used the method described here:  CodeProject - Most Practical Split Function

Let's assume you name the function fn_split when you create it in your database.  Using it would be as simple as:

[dbo].[FN_SPLIT] (@instring, ',')

If this doesn't work for you just reply back with more requirements and I'll try to help.
Vitor MontalvãoMSSQL Senior EngineerCommented:
SET @instring = '(''' + REPLACE(@instring,',',''',''') + ''')'

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HuaMin ChenProblem resolverCommented:
declare @str varchar(30),
@prt varchar(30),
@prt2 varchar(30),
@prt3 varchar(30),
@pos int,
@pos2 int,
@pos3 int

set @str = '02542577,02028900,01228136'
set @pos=charindex(',',@str)
set @pos2=charindex(',',@str,@pos+1)
set @pos3=len(@str)

set @prt=substring(@str,1,@pos-1)
set @prt2=substring(@str,@pos+1,@pos2-1-@pos)
set @prt3=substring(@str,@pos2+1,@pos3-@pos2)

print @prt
print @prt2
print @prt3

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