Sql Server 2012 How to Get List on Function - sql-server-2012

Question

Function Details:
alter FUNCTION siralama_puan (#suggestion_id int)
RETURNS int
AS
Begin
Declare #comment_count int,#like_count int,#favorite_count int,#date_point int,#suggestion_point int,#suggestion_date datetime,#fark int
set #comment_count=(select [Suggestion].CommentCount from [Suggestion] where [Suggestion].Id= #suggestion_id)
set #like_count=(select [Suggestion].LikeCount from [Suggestion] where [Suggestion].Id=#suggestion_id)
set #favorite_count=(select [Suggestion].FavoriteCount from [Suggestion] where [Suggestion].Id=#suggestion_id)
set #suggestion_date=(select [Suggestion].Crtm from [Suggestion] where [Suggestion].Id=#suggestion_id)
set #fark =(select DATEDIFF(day,#suggestion_date,GETDATE()))
if #fark<6
set #date_point=30
else if #fark<10 and #fark>=6
set #date_point=20
else
set #date_point=10
set #suggestion_point=(#comment_count*2)+(#like_count)+(#favorite_count*3)+#date_point
RETURN #suggestion_point
End
Calling Function:
select dbo.siralama_puan (122280,1) as puan order by puan desc
but it didn't work.Error:Procedure or function dbo.siralama_puan has too many arguments specified.Multiple arguments not working.

Answer 1

It is not possible to define one parameter of type INT and pass in a list. But there are several approaches:
TYPE
Create your own type with CREATE TYPE read here.... This allows you to pass in a list very similar to a (read only) table
XML
Let your parameter be of type XML and pass in something like
<root>
<prm value="122280"/>
<prm value="1"/>
</root>
It's quite easy to transform this XML within your function to a list with something like
SELECT Prm.value('#value','int') AS PrmValue
FROM #prm.nodes('/root/prm') AS One(Prm)
CSV
A parameter of type VARCHAR(MAX) and a comma separated list like "122280,1". Find a way to split this here: section "Dynamic IN-statement"