How to use Pass comma separated string in dynamic query in SQL

Question

I have a function which will return integer values from comma delimited string , It takes two parameters (@string nvarchar(4000), @delimiter char(1)). So the problem is if I am

Answer 1

When you build a dynamic SQL like that, you need to wrap your parameter in double quote ''

declare @ProductIDs varchar(11)
declare @SQL varchar(max)

set @ProductIDs='1,2,3,4'
declare @query varchar(max)
--set @query= @ProductIDs +','+@Delimiter

SELECT @SQL = 'SELECT val FROM dbo.[fnDelimitedStringToTable]('''+ @ProductIDs +''' , '','')'

Exec(@SQL)

This way the SQL statement will be:

SELECT val FROM dbo.[fnDelimitedStringToTable]('1,2,3,4' , '','')

and not:

SELECT val FROM dbo.[fnDelimitedStringToTable](1,2,3,4 , '','')