How to eliminate Nulls, and insert with split delimter - tsql

Question

drop table #temp
Create Table #Temp
(
col1 Varchar(20),
col2 Varchar(20),
Col3 Varchar(50),
col4 Varchar(20)
)
Select * From #Temp
Insert Into #Temp(col1)
Select * From SplitDelimiterString('123,456', ',')
Insert Into #Temp(col2)
Select * From SplitDelimiterString('abc,def', ',')
Insert Into #Temp(Col3)
Select * From SplitDelimiterString('fff,ggg', ',')
Insert Into #Temp(col4)
Select * From SplitDelimiterString('520002,520003', ',')
Select * From #Temp
FYI, SplitDelimiterString is a function.
-- Code for SplitDelimiterString
Create FUNCTION [dbo].[SplitDelimiterString] (#StringWithDelimiter VARCHAR(8000), #Delimiter VARCHAR(8))
RETURNS #ItemTable TABLE (Item VARCHAR(8000))
AS
BEGIN
DECLARE #StartingPosition INT;
DECLARE #ItemInString VARCHAR(8000);
SELECT #StartingPosition = 1;
--Return if string is null or empty
IF LEN(#StringWithDelimiter) = 0 OR #StringWithDelimiter IS NULL RETURN;
WHILE #StartingPosition > 0
BEGIN
--Get starting index of delimiter .. If string
--doesn't contain any delimiter than it will returl 0
SET #StartingPosition = CHARINDEX(#Delimiter,#StringWithDelimiter);
--Get item from string
IF #StartingPosition > 0
SET #ItemInString = SUBSTRING(#StringWithDelimiter,0,#StartingPosition)
ELSE
SET #ItemInString = #StringWithDelimiter;
--If item isn't empty than add to return table
IF( LEN(#ItemInString) > 0)
INSERT INTO #ItemTable(Item) VALUES (#ItemInString);
--Remove inserted item from string
SET #StringWithDelimiter = SUBSTRING(#StringWithDelimiter,#StartingPosition +
LEN(#Delimiter),LEN(#StringWithDelimiter) - #StartingPosition)
--Break loop if string is empty
IF LEN(#StringWithDelimiter) = 0 BREAK;
END
RETURN
END
-- The result set is
Col1 Col2 Col3 Col4
123 NULL NULL NULL
456 NULL NULL NULL
NULL abc NULL NULL
NULL def NULL NULL
NULL NULL fff NULL
NULL NULL ggg NULL
NULL NULL NULL 520002
NULL NULL NULL 520003
-- I need a result set like
-- The result set is
col1 col2 col3 col4
123 abc fff 520002
456 def ggg 520003
Please help.

Answer 1

--- Figured out my self. Thanks to #liebs19 for logic
BEGIN TRAN
Create Table #Temp1
(
RowID int not null identity(1,1) primary key,
col1 Varchar(20),
)
Create Table #Temp2
(
RowID int not null identity(1,1) primary key,
col2 Varchar(20),
)
Create Table #Temp3
(
RowID int not null identity(1,1) primary key,
col3 Varchar(20),
)
Create Table #Temp4
(
RowID int not null identity(1,1) primary key,
col4 Varchar(20),
)
Insert Into #Temp1(col1)
Select * From SplitDelimiterString('123,456', ',')
Insert Into #Temp2(col2)
Select * From SplitDelimiterString('abc,def', ',')
Insert Into #Temp3(Col3)
Select * From SplitDelimiterString('fff,ggg', ',')
Insert Into #Temp4(col4)
Select * From SplitDelimiterString('520002,520003', ',')
Select #Temp1.Col1, #Temp2.col2, #Temp3.Col3, #Temp4.Col4
From #Temp1
Inner Join #Temp2 ON #Temp1.RowID = #Temp2.RowID
Inner Join #Temp3 ON #Temp1.RowID = #Temp3.RowID
Inner Join #Temp4 ON #Temp1.RowID = #Temp4.RowID
ROLLBACK TRAN
-- This is the output finally I am looking for.
col1 col2 col3 col4
123 abc fff 520002
456 def ggg 520003
.