sql server 2005 - eliminate blocks of 500 by 500.

I do not understand what you mean by the "3 months" part, but hopefully this helps:

To delete the oldest 500 records older than 60 days (identified by DateTime column myTable.recordDateTime) in a table called myTable:

delete top 500
from myTable
where myTable.recordDateTime >= dateadd(day, -60, getdate())
order by myTable.recordDateTime desc

Select allOpen in new window

THE table is very large, that is why you want to delete in groups of three months and within those three months of 500 in 500

this previously answered question (PAQ) may be of assistance - it discusse using batches.

Also see http://www.sqlserverspecialists.com/2013/04/table-hints-sql-server.html

Please,

Anyway I need your script support

The range of debugging for the deletion of records is 3 months. Within these three months should eliminate blocks of 500 by 500.

Please show the table structure,

use  WITH (ROWLOCK) for delete statement.
And using temp table add all ids that going to delete from the table and then delete it from table one by one using loop.

This is the table
--Create table and its columns
CREATE TABLE [dbo].[pruebas_rln] (
      [id] [int] NOT NULL IDENTITY (1, 1),
      [sesion] [varchar](34) NULL,
      [pais] [varchar](2) NULL,
      [tienda] [varchar](10) NULL,
      [kiosco] [varchar](10) NULL,
      [tipoConsulta] [varchar](1) NULL,
      [tipoProducto] [varchar](20) NULL,
      [tipoTarjeta] [varchar](20) NULL,
      [numTarjeta] [varchar](20) NULL,
      [tipoDocumento] [varchar](1) NULL,
      [numDocumento] [varchar](20) NULL,
      [codigoPantalla] [varchar](20) NULL,
      [tiempoVisita] [int] NULL,
      [tiempoRespuesta] [int] NULL,
      [impresionRealizada] [varchar](1) NULL,
      [fechaRegistro] [datetime] NULL);

I attached some data
script-depuracion---Copy.txt

Please experts, you support is very important for me

Hi experts

I test but too long

declare @contador int = 0
declare @DeleteDate as datetime
select @DeleteDate = cast( convert(varchar(10),dateadd(day, -60, getdate()),101) as datetime) -- this gets you 60 days ago at midnight
--print @DeleteDate

while (select count(1) from [dbo].[pruebas_rln] where fechaRegistro <  @DeleteDate) >0
begin
     delete top (50)
     from   [dbo].[pruebas_rln]
     where fechaRegistro >  @DeleteDate;

       --@contador = @contador +1;
       print @contador
end

Hello experts, I tried it but the query takes more than five minutes, I'm not sure but I think it has entered an infinite loop, please support

How many record are there if you

declare @DeleteDate as datetime
select @DeleteDate = cast( convert(varchar(10),dateadd(day, -60, getdate()),101) as datetime) -- this gets you 60 days ago at midnight
--print @DeleteDate

select count(1) from [dbo].[pruebas_rln] where fechaRegistro <  @DeleteDate

Select allOpen in new window

for my test I have 304 rows