Passing comma-separated value from .NET to stored procedure using the value in “IN” SQL function

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粉色の甜心
粉色の甜心 2021-01-13 04:12

I have an SQL query similar to the following:

create procedure test
(
   @param1 nvarchar(max)
)
as
begin
    select * from table where column1 in (@param1)
         


        
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  • 2021-01-13 04:35

    I don't think the problem is in the values you are passing. @param1 is just a string.

    You need to address this in your procedure. Your select statement will not be able to recognize the values in you IN clause. One solution is to take the comma-separated string and insert each record into a table variable Explained Here

    If your table variable is table @param_list, you procedure test looks like:

    create procedure test ( @param1 nvarchar(max) ) 
    as begin 
    select * from table where column1 in (Select thefield from @param_list); 
    end
    
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  • 2021-01-13 04:39

    For this type of thing, I use this function and use it as follows:

    select Column1, column2 from my table where ID in (select item from fnSplit('1,2,3,4,5,6',','))

    create FUNCTION [dbo].[fnSplit](
            @sInputList VARCHAR(8000) -- List of delimited items
          , @sDelimiter VARCHAR(8000) = ',' -- delimiter that separates items
        ) 
    
    RETURNS @List TABLE (item VARCHAR(8000))
    
    BEGIN
    DECLARE @sItem VARCHAR(8000)
    WHILE CHARINDEX(@sDelimiter,@sInputList,0) <> 0
     BEGIN
     SELECT
      @sItem=RTRIM(LTRIM(SUBSTRING(@sInputList,1,CHARINDEX(@sDelimiter,@sInputList,0)-1))),
      @sInputList=RTRIM(LTRIM(SUBSTRING(@sInputList,CHARINDEX(@sDelimiter,@sInputList,0)+LEN(@sDelimiter),LEN(@sInputList))))
    
     IF LEN(@sItem) > 0
      INSERT INTO @List SELECT @sItem
     END
    
    IF LEN(@sInputList) > 0
     INSERT INTO @List SELECT @sInputList -- Put the last item in
    RETURN
    END
    
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  • 2021-01-13 04:41

    quickly like that, I would create a table valued function that would parse it so you can do

       select * 
       from table 
       where field in (select field from dbo.myfunction(@param1))
    
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