MS SQL Group rows based on start and end - sql

Question

I have a table that looks like this with repeating rows of 3 and 3...
Column1 | Column2
CustomerID | 22
CustomerName | ”ABC”
Responsible | ”Allan”
CustomerID | 23
CustomerName | ”DEF”
Responsible | ”Jessica”
CustomerID | 24
CustomerName | ”GHI”
Responsible | ”Paul”
The following script can be used to create the table and populate it with sample data...
CREATE TABLE Responsible
( [ RowType ] VARCHAR(12),
[ Value ] VARCHAR(9) )
;
INSERT INTO Responsible
( [RowType],
[ Value ] )
VALUES
( 'CustomerID',
'22' ),
( 'CustomerName',
'ABC'),
( 'Responsible',
'Allan' ),
( 'CustomerID',
'23' ),
( 'CustomerName',
'DEF' ),
( 'Responsible',
'Jessica' ),
( 'CustomerID',
'24' ),
( 'CustomerName',
'GHI' ),
( 'Responsible',
'Paul' );
And I would like to get it like a table that looks like this:
CustomerID | CustomerName | Responsible
22 | ABC | Allan
23 | DEF | Jessica
24 | GHI | Paul
What is the best way forward?

Answer 1

I got it to work like this in SQL Server. I don't see any other option, but to use a cursor to go down one row at a time. The script below works only in your unique situation.
Create the new table
USE [YOURDATABASE NAME GOES HERE]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[Table_2](
[CustomerID] [int] NULL,
[CustomerName] [varchar](50) NULL,
[Responsible] [varchar](50) NULL
) ON [PRIMARY]
GO
Insert Data Into Table
DECLARE #CustomerId INT
DECLARE #CustomerName VARCHAR(50)
DECLARE #Responsible VARCHAR(50)
DECLARE myCursor CURSOR
FOR SELECT Column2 FROM Table_1;
OPEN myCursor;
FETCH NEXT FROM myCursor
INTO #CustomerId;
FETCH NEXT FROM myCursor
INTO #CustomerName;
FETCH NEXT FROM myCursor
INTO #Responsible;
WHILE ##FETCH_STATUS = 0
BEGIN
INSERT INTO [dbo].[Table_2](CustomerID,CustomerName,Responsible)
VALUES (#CustomerId,#CustomerName,#Responsible)
FETCH NEXT FROM myCursor
INTO #CustomerId;
FETCH NEXT FROM myCursor
INTO #CustomerName;
FETCH NEXT FROM myCursor
INTO #Responsible;
END
CLOSE myCursor;
DEALLOCATE myCursor;
GO

Answer 2

edit, SQL server version :
Query 10:
select CustomerID, CustomerName, Responsible
from (
select row_number() over(order by k) as id , v as CustomerID
from t1
where k ='CustomerID') tt1
inner join (
select row_number() over(order by k) as id , v as CustomerName
from t1
where k ='CustomerName') tt2
on tt1.id = tt2.id
inner join (
select row_number() over(order by k) as id , v as Responsible
from t1
where k ='Responsible') tt3
on tt1.id = tt3.id
Results:
| CustomerID | CustomerName | Responsible |
|------------|--------------|-------------|
| 22 | ABC | Allan |
| 23 | DEF | Jessica |
| 24 | GHI | Paul |
This is what you want I think ?
SQL Fiddle
MySQL 5.6 Schema Setup:
CREATE TABLE t1
(`k` varchar(12), `v` varchar(9))
;
INSERT INTO t1
(`k`, `v`)
VALUES
('CustomerID', '22'),
('CustomerName', 'ABC'),
('Responsible', 'Allan'),
('CustomerID', '23'),
('CustomerName', 'DEF'),
('Responsible', 'Jessica'),
('CustomerID', '24'),
('CustomerName', 'GHI'),
('Responsible', 'Paul')
;
Query 1:
set #v1 = 0, #v2 = 0, #v3 = 0
Query 2:
select CustomerID, CustomerName, Responsible
from (
select #v1:= #v1+1 as id , v as CustomerID
from t1
where k ='CustomerID'
) tt1
inner join (
select #v2:= #v2+1 as id , v as CustomerName
from t1
where k ='CustomerName'
) tt2
on tt1.id = tt2.id
inner join (
select #v3:= #v3+1 as id , v as Responsible
from t1
where k ='Responsible'
) tt3
on tt1.id = tt3.id;
Results:
| CustomerID | CustomerName | Responsible |
|------------|--------------|-------------|
| 22 | ABC | Allan |
| 23 | DEF | Jessica |
| 24 | GHI | Paul |