Convert Nverchar Value Contain Comma To Int In SQL

I have Nvarchar Value As '7055,7085,7090,7035,7040,7050,7053,7055'

I Want To Convert It To Int.

Using Cast Or Convert It throw Error As Conversion failed when converting the nvarchar value '7010,7035,7045,7050,7053,7055,7085,7090,7040' to data type int.

Help Me To Convert It To Int

Thank You.
Naitik GamitSoftware DeveloperAsked:
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Vitor MontalvãoMSSQL Senior EngineerCommented:
What do you pretend to do? Split each number in the varchar field and convert it one by one to int?
Naitik GamitSoftware DeveloperAuthor Commented:
I want to use this converted int value to IN query as

Select A,B,C Fom Etc_Tbl Where ID IN ( )

When I am using nvarchar value it throw error as :
Conversion failed when converting the nvarchar value '7010,7035,7045,7050,7053,7055,7085,7090,7040' to data type int.

I am also try cast and convert but no change......
Vitor MontalvãoMSSQL Senior EngineerCommented:
Etc_Tbl is INT data type?
And what is the column name for you varchar values?
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Naitik GamitSoftware DeveloperAuthor Commented:

Select A,B,C Fom Etc_Tbl Where ID IN ( )  

In my query ID is int and nvarchar field is named Role_CSV

so,i am trying as

Select A,B,C Fom Etc_Tbl Where ID IN ( Role_CSV )
Select A,B,C Fom Etc_Tbl Where ID IN (CAST(Role_CSV  AS INT ) )
Select A,B,C Fom Etc_Tbl Where ID IN (CONVERT(INT,Role_CSV ) )  
But it not convert Role_CSV to INT.
Ryan ChongBusiness Systems Analyst , ex-Senior Application EngineerCommented:
you can try customize:
CREATE FUNCTION dbo.Split3 ( @strString varchar(4000))

      DECLARE @x XML 
      SELECT @x = CAST('<A>'+ REPLACE(@strString,',','</A><A>')+ '</A>' AS XML)
      INSERT INTO @Result            
      SELECT t.value('.', 'int') AS inVal
      FROM @x.nodes('/A') AS x(t)


DECLARE @str VARCHAR(4000) = '7010,7035,7045,7050,7053,7055,7085,7090,7040'
Select A,B,C From Etc_Tbl Where ID IN (  select Value from dbo.Split3(@str)  )

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Convert Comma Separated String to Table : 4 different approaches

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Vitor MontalvãoMSSQL Senior EngineerCommented:
Try to think in another solution as for example why not to convert the INT column to VARCHAR and compare it in the WHERE clause:
Select A,B,C 
From Etc_Tbl 

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Thomas H.Commented:
select a, b, c from etc_tbl
where charindex(cast(id as varchar(20)),'7040,7055,7090,7035,7040,7050,7053,7055') > 0
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