Martin Guth (37) has been a passionate BI developer for more than 11 years. He has also been fascinated by database administration for 5 years. He works at 3C Deutschland GmbH (a company of Arvato Financial Solutions) in Heilbronn. Highlights from his work as a BI developer are building a data warehouse from scratch and delivering analytic products. As a database administrator, performance tuning is particularly important to him. Martin shares his experiences (deliberately irregular) on his blog at martinguth.de.