How to get below query in SQL server 2008

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How to get below query in SQL server 2008

sunilkmr284

Old Hand

Points: 309
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October 10, 2019 at 3:56 am
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#3687641

Dear All,
I have a table with one field name as City.
Below are the data.
City
--------
A
B
C
D
E
F
G
H
Write a query or stored procedure or function?
If a pass 2 , the query result will be below
A      B
C    D
E    F
G   H
If a pass 3, the query result will be below
A     B     C
D    E      F
G   H
If a pass 4, the query result will be below
A     B      C     D
E     F     G     H
If a pass 5, the query result will be and so on as above result.

Thanks in advance

Luis Cazares

SSC Guru

Points: 183698

October 10, 2019 at 1:42 pm

Answer

#3687731

So much code for a simple pivot.

--Create sample data
CREATE TABLE #Table 
(
City VARCHAR(50)
)

INSERT INTO #Table (City) 
VALUES ('A'), ('B'), ('C'), ('D'), ('E'), ('F'), ('G'), ('H');


--Solution starts here. The first variable can be converted into a parameter when converting the query into a stored procedure.
DECLARE @Columns int = 5;

DECLARE @SQL    NVARCHAR(MAX),
        @Cols   NVARCHAR(MAX);

-- Create code for as many columns as necessary
WITH 
E(n) AS(
    SELECT n FROM (VALUES(0),(0),(0),(0),(0),(0),(0),(0),(0),(0))E(n)
),
cteTally(n) AS(
    SELECT TOP( @Columns) 
        ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) n
    FROM E a, E b
) 
SELECT @Cols = STUFF(( SELECT NCHAR(9) + REPLACE( ',MAX( CASE WHEN ColumnOrder = <<N>> THEN City END) AS Col<<N>>', N'<<N>>', N) + NCHAR(10)
                FROM cteTally
                FOR XML PATH(''), TYPE).value('./text()[1]', 'nvarchar(max)'), 2, 1, N' ');
        
--Add the columns code to the whole query
--ColumnOrder will assign the cities to each column
--ColumnGroup will assign the cities to independent rows
SET @SQL = N'
WITH CTE AS(
    SELECT *,
           (ROW_NUMBER() OVER( ORDER BY City) - 1) % @Columns + 1 ColumnOrder,
           (ROW_NUMBER() OVER( ORDER BY City) - 1) / @Columns + 1 ColumnGroup
    FROM #Table
)
SELECT 
' + @Cols 
+ N'FROM CTE
GROUP BY ColumnGroup;';

--This is for debugging purposes 
--PRINT @SQL;

EXECUTE sp_executesql @SQL, N'@Columns int', @Columns;


GO
--Clean my environment
DROP TABLE #Table;

Luis C.
General Disclaimer:
Are you seriously taking the advice and code from someone from the internet without testing it? Do you at least understand it? Or can it easily kill your server?

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Brahmanand Shukla SSC Eights! Points: 980 More actions · Answer 1

 /*
EXEC #usp_Get_City
@No_Of_Rows_To_Group = 1

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 2

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 3

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 4

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 5

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 6
*/
CREATE PROCEDURE #usp_Get_City
(
@No_Of_Rows_To_Group TINYINT
)
AS
BEGIN
SET NOCOUNT ON

DECLARE @Partition TINYINT

DECLARE @Table TABLE
(
City VARCHAR(50)
)

INSERT INTO @Table (City) VALUES ('A'), ('B'), ('C'), ('D'), ('E'), ('F'), ('G'), ('H')

IF OBJECT_ID('tempdb..#city_stag') IS NOT NULL DROP TABLE #city_stag
SELECT ROW_NUMBER() OVER(ORDER BY City ASC) AS RowID
, 
CASE (ROW_NUMBER() OVER(ORDER BY City ASC) % NULLIF(@No_Of_Rows_To_Group, 0))
WHEN 0 THEN @No_Of_Rows_To_Group
ELSE (ROW_NUMBER() OVER(ORDER BY City ASC) % NULLIF(@No_Of_Rows_To_Group, 0))
END AS GroupID
, City
INTO #city_stag
FROM @Table

SELECT @Partition = COUNT(1)
FROM #city_stag
WHERE GroupID = 1

; WITH cte_groups_stag
AS
(
SELECT RowID
, NTILE(ISNULL(@Partition, 1)) OVER(PARTITION BY GroupID ORDER BY RowID ASC) AS GroupID
, City
FROM #city_stag
)
, cte_unique_groups_stag
AS
(
SELECT DISTINCT GroupID
FROM cte_groups_stag
)

SELECT GroupID
, City = STUFF( 
(
SELECT ',' + City
FROM cte_groups_stag STG1
WHERE STG1.GroupID = STG2.GroupID
FOR XML PATH('')
), 1, 1, '')
FROM cte_unique_groups_stag STG2
END

Output

If you want city in the different columns instead of comma separated values then you can use the dynamic sql.

SQL Server Carpenter - Consultant & Trainer
Author of Learn T-SQL from Scratch

sunilkmr284 Old Hand Points: 309 More actions · Answer 2

Hi,

Thank you so much

Output will be as Column as well

Write a query or stored procedure or function?

If a pass 2 , the query result will be below

Col1 Col2

A B

C D

E F

G H

If a pass 3, the query result will be below

Col1 Col2 Col3

A B C

D E F

G H

If a pass 4, the query result will be below

Col1 Col2 Col3 Clo4

A B C D

E F G H

Brahmanand Shukla SSC Eights! Points: 980 More actions · Answer 3

Here you go. Mark it as answer if it serves your purpose.

First of all create the below user defined scalar function

CREATE FUNCTION [ufn_SPLIT_STRING_BY_DELIMITER](@String nvarchar(4000), @Delimiter char(1))
RETURNS @Results TABLE (Items nvarchar(4000),ID int)
WITH SCHEMABINDING
AS
BEGIN
DECLARE @INDEX INT
DECLARE @SLICE nvarchar(4000)
-- HAVE TO SET TO 1 SO IT DOESNT EQUAL Z
-- ERO FIRST TIME IN LOOP
DECLARE @ID INT
SET @ID=1 
SELECT @INDEX = 1
WHILE @INDEX !=0
BEGIN
-- GET THE INDEX OF THE FIRST OCCURENCE OF THE SPLIT CHARACTER
SELECT @INDEX = CHARINDEX(@Delimiter,@STRING)
-- NOW PUSH EVERYTHING TO THE LEFT OF IT INTO THE SLICE VARIABLE
IF @INDEX !=0
SELECT @SLICE = LEFT(@STRING,@INDEX - 1)
ELSE
SELECT @SLICE = @STRING
-- PUT THE ITEM INTO THE RESULTS SET
INSERT INTO @Results(Items,ID) VALUES(@SLICE,@ID)
-- CHOP THE ITEM REMOVED OFF THE MAIN STRING
SELECT @STRING = RIGHT(@STRING,LEN(@STRING) - @INDEX)
-- BREAK OUT IF WE ARE DONE
set @ID=@ID+1
IF LEN(@STRING) = 0 BREAK
END
RETURN
END

Now try the below procedure

/*
EXEC #usp_Get_City
@No_Of_Rows_To_Group = 1

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 2

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 3

EXEC #usp_Get_City
@No_Of_Rows_To_Group = 4
*/
ALTER PROCEDURE #usp_Get_City
(
@No_Of_Rows_To_Group TINYINT
)
AS
BEGIN
SET NOCOUNT ON

IF @No_Of_Rows_To_Group > 4 
BEGIN
RAISERROR ('@No_Of_Rows_To_Group cannot be greater than 4. If you wish to have it then amend the code accordingly', 16, 1); 
RETURN;
END

DECLARE @Partition TINYINT

DECLARE @Table TABLE
(
City VARCHAR(50)
)

INSERT INTO @Table (City) VALUES ('A'), ('B'), ('C'), ('D'), ('E'), ('F'), ('G'), ('H')

IF OBJECT_ID('tempdb..#Output') IS NOT NULL DROP TABLE #Output
CREATE TABLE #Output
(
GroupID INT
, City VARCHAR(MAX)
, Col1 VARCHAR(50)
, Col2 VARCHAR(50)
, Col3 VARCHAR(50)
, Col4 VARCHAR(50)
)

IF OBJECT_ID('tempdb..#city_stag') IS NOT NULL DROP TABLE #city_stag
SELECT ROW_NUMBER() OVER(ORDER BY City ASC) AS RowID
, 
CASE (ROW_NUMBER() OVER(ORDER BY City ASC) % NULLIF(@No_Of_Rows_To_Group, 0))
WHEN 0 THEN @No_Of_Rows_To_Group
ELSE (ROW_NUMBER() OVER(ORDER BY City ASC) % NULLIF(@No_Of_Rows_To_Group, 0))
END AS GroupID
, City
INTO #city_stag
FROM @Table

SELECT @Partition = COUNT(1)
FROM #city_stag
WHERE GroupID = 1

; WITH cte_groups_stag
AS
(
SELECT RowID
, NTILE(ISNULL(@Partition, 1)) OVER(PARTITION BY GroupID ORDER BY RowID ASC) AS GroupID
, City
FROM #city_stag
)
, cte_unique_groups_stag
AS
(
SELECT DISTINCT GroupID
FROM cte_groups_stag
)

INSERT INTO #Output (GroupID, City)
SELECT GroupID
, City = STUFF( 
(
SELECT ',' + City
FROM cte_groups_stag STG1
WHERE STG1.GroupID = STG2.GroupID
FOR XML PATH('')
), 1, 1, '')
FROM cte_unique_groups_stag STG2

UPDATE OUTP
SET OUTP.Col1 = STRNG.items
FROM #Output OUTP
CROSS APPLY ufn_SPLIT_STRING_BY_DELIMITER (OUTP.City, ',') STRNG
WHERE STRNG.ID = 1

UPDATE OUTP
SET OUTP.Col2 = STRNG.items
FROM #Output OUTP
CROSS APPLY ufn_SPLIT_STRING_BY_DELIMITER (OUTP.City, ',') STRNG
WHERE STRNG.ID = 2

UPDATE OUTP
SET OUTP.Col3 = STRNG.items
FROM #Output OUTP
CROSS APPLY ufn_SPLIT_STRING_BY_DELIMITER (OUTP.City, ',') STRNG
WHERE STRNG.ID = 3

UPDATE OUTP
SET OUTP.Col4 = STRNG.items
FROM #Output OUTP
CROSS APPLY ufn_SPLIT_STRING_BY_DELIMITER (OUTP.City, ',') STRNG
WHERE STRNG.ID = 4

DECLARE @Col_Number TINYINT
, @Col_Name NVARCHAR(MAX)

SET @Col_Number = 1
WHILE @Col_Number <= @No_Of_Rows_To_Group
BEGIN
IF @Col_Number = 1 SET @Col_Name = '[Col' + CAST(@Col_Number AS VARCHAR) + ']'
ELSE SET @Col_Name = @Col_Name + ', ' + '[Col' + CAST(@Col_Number AS VARCHAR) + ']'

SET @Col_Number = @Col_Number + 1;
END

EXECUTE ('SELECT ' + @Col_Name + ' FROM #Output')

IF OBJECT_ID('tempdb..#Output') IS NOT NULL DROP TABLE #Output
END