What I learned in the last year? Resources and websites that help you get started with SQL Server

For Spanish version visit this link ¿Qué he aprendido en el último año? Recursos y webs que te ayudarán a comenzar con SQL Server
Within days, June 20th, will be one year since I joined Avanade Spain, so I think that is a good moment to stop and think over all learned in the last 366 days.
I can safely say that this was the year that I’ve grown more as SQL Server professional, When I started at company, didn’t know practicaly how a cluster works; the replication seemed a world apart; I wasn’t familiar with SQL Scripting; and my English level was much worse (you can see how badly I write, but before was even worse).
I got my new knowledges in a big part thanks to my father, my co-workers, Google, MSDN forums, and blogs that saved my life a lot of times, I going to enumerate some of this:
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How to create an SQL Server 2012 installer with integrated CU1 (Product Updates – Slipstream)

For Spanish version visit this link Cómo crear un instalador de SQL Server 2012 con CU1 integrado (Product Updates – Slipstream)
Time ago, I created an automated batch procedure to create an SQL Server 2008 R2 Installer with Integrated SP1, known as Slipstream, now in SQL Server 2012 this was replaced with a new funcionality called Product Updates.
With the Product Updates funcionality we can integrate Service Pack or Cumulative Updates to the SQL Server installer, this save much time, specially when you need to do multiple installations.
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Script: Reduce Log File depending on DB Data Files size

For Spanish version visit this link Script: Reducir Log porcentualmente dependiendo del tamaño de los ficheros de Datos
A friend asked me about a dynamic script to reduce the DB Log File based on the total size of DB Data Files, here is the answer:
-- File: ShrinkToPercent.sql
-- Author: Fran Lens (http:\\www.lensql.net)
-- Date: 2012-03-27
-- Description: Reduce LogFile Size based on percentage of the Total Size of DataFiles
DECLARE @SelectDB varchar(50)
DECLARE @ShrinkPercent float
DECLARE @RecoverySimple varchar(200)
DECLARE @RecoveryFull varchar(200)
DECLARE @ShrinkCommand nvarchar(200)
DECLARE @ShrinkFile varchar(50)
DECLARE @ShrinkValue varchar(50)

SET @SelectDB = 'AdventureWorks2008R2' -- Database whose Log will be Reduced
SET @ShrinkPercent = 30 -- Percentage of the DataFiles Size to Reduce the LogFile
						-- Example: With a value of 20 Percent and 1GB of Datafiles Size, the Log will be reduced to 200MB

SET @DbId= (select database_id from sys.databases where name=@SelectDB)
SET @RecoverySimple = 'ALTER DATABASE [' + @SelectDB + '] SET RECOVERY SIMPLE WITH NO_WAIT' -- Change the recovery model to Simple
SET @ShrinkFile = (SELECT name from sys.master_files WHERE database_id = @DBid and type_desc = 'LOG')
SET @ShrinkValue = (@ShrinkPercent)/100 * (SELECT SUM(size)/128 FROM sys.master_files WHERE database_id = @DBid and type_desc = 'ROWS')
SET @ShrinkCommand = 'USE [' + @SelectDB + ']' + CHAR(13)+ 'DBCC SHRINKFILE('+ @ShrinkFile+',' + @ShrinkValue + ')' -- Reduce the LogFile Size
SET @RecoveryFull = 'ALTER DATABASE [' + @SelectDB + '] SET RECOVERY FULL WITH NO_WAIT' -- Change the recovery model to Full

EXEC (@RecoverySimple)
EXEC sp_executesql @ShrinkCommand
EXEC (@RecoveryFull)

Scripts: Jobs Not Executed in the Last Year / Job Activity Details

For Spanish version visit this link Scripts: Jobs no ejecutados en el último año / Actividad de Jobs Detallada
A few days ago i was looking for a script to let me know when was the last execution of a job, so I can review the jobs that were not executed in the last year and delete the ones not needed, but i couldn’t find anything valid, so i had to create one.
 I use the columns last_run_date and last_run_time from sysjobservers table to get this value, the scripts that i found on Internet used other columns from other tables which i will describe why i not chose:
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