Rows to Columns in SQL Server 2000

Question

I have this..

IDProspecto | IDObservacionCustomer | Observacion
---------------------------------------------------------    
  2204078   | 275214                    


        

Answer 1

You can try this example.

Prepare data:

create table tab1
(
  IDProspecto  int,
  IDObservacionCustomer int, 
  Observacion varchar(130)
)    

insert into tab1
values (2204078,275214 ,'03/9 Hable con Claudia me informa que Roberto ya se termino le deje..' )

insert into tab1
values (2204078,294567   ,'19/09 SOLICITAN LLAME MAÑANA A ALEJANDRO   ' )

insert into tab1
values (2204078,295310 ,'20/09 se envia mail a adrian' )

insert into tab1
values (2204078,304102 ,'CIA SOLICITA NO INSTALE EQUIPO' )

We need identity field, so I create new table, and copy data from tab1.

create table tab2
(
  id int identity,  
  IDProspecto  int,
  IDObservacionCustomer int, 
  Observacion varchar(130)
)

insert into tab2(IDProspecto,IDObservacionCustomer,Observacion)
select IDProspecto,IDObservacionCustomer,Observacion from tab1

Run query:

declare @max int, @inc int, @SqlSel varchar(2000),@SqlJoin varchar(2000), @Sql varchar(2000)

select @max = max(cnt) from (
select count(1) as cnt
  from tab1
) T

select @inc = 1
select @SqlSel = 'select distinct t.IDProspecto '
select @SqlJoin = 'from tab2 t'
while @max>=@inc
begin
  select @SqlSel= @SqlSel+', tab2'+convert(varchar,@inc)+'.Observacion as o'+convert(varchar,@inc)
  select @SqlJoin = @SqlJoin+' left join tab2 as tab2'+convert(varchar,@inc)+' on t.IDProspecto = tab2'+convert(varchar,@inc)+'.IDProspecto and  tab2'+convert(varchar,@inc)+'.id='+convert(varchar,@inc)
  select @inc=@inc+1
end

select @SqlSel, @SqlJoin

exec( @SqlSel+' '+ @SqlJoin)