Stored procedure with variable number of parameters

Question

I have stored procedure where I have to pass parameters, But the problem is I am not sure how many parameters is going to come it can be 1, in next run it can be 5.

Answer 1

Here is a code snippet that splits a string based on , as delimiter. You can even parametrize the comma. It's useful on systems that don't have the String_split function yet:

  DECLARE @startindex INT
  DECLARE @commaindex INT
  DECLARE @paramAsString VARCHAR(MAX) -- this represents the input param
  DECLARE @param VARCHAR (1024)
  DECLARE @paramsTable TABLE(param VARCHAR(1024) NOT NULL) -- the splitted params come here

  SET @startindex = 1
  WHILE @startindex < LEN(@paramAsString)
  BEGIN
    SET @commaindex = CHARINDEX(',', @paramAsString, @startindex)

    IF @commaindex = 0
    BEGIN
      SET @param = SUBSTRING(@paramAsString, @startindex, LEN(@paramAsString))
      SET @startindex = LEN(@settlementEntities)
    END
    ELSE
    BEGIN
      SET @param = SUBSTRING(@paramAsString, @startindex, (@commaindex - @startindex))
      SET @startindex = @commaindex + 1
    END
    IF @se IS NOT NULL AND 0 < LEN(RTRIM(LTRIM(@param)))
    BEGIN
      SET @param = RTRIM(LTRIM(@param))
      INSERT INTO @paramsTable (param) VALUES (@param)
    END
  END