22-25 April 2026 
Klaus Aschenbrenner
Klaus Aschenbrenner provides with his company SQLpassion SQL Server consulting & training services across Europe. Klaus works with SQL Server for more than 20 years. Klaus has also written the book Pro SQL Server 2008. In his spare time he loves to do low-level OS development coding in x64 and ARM assembly
Klaus Aschenbrenner's Training Days
Practical SQL Server Performance TroubleshootingSQLBits 2017
In this precon we will take a default installation of SQL Server, and run a OLTP workload with a several hundred users to generate our initial baseline for performance tuning/troubleshooting. And then we will improve the throughput of our workload.
Locking and Blocking in SQL ServerSQLBits 2016
Locks are used by SQL Server to isolate database users from each other. Unfortunately
incompatible locks leads to blocking. And blocking situations are always
hurting your end users regarding their response time.
Practical SQL Server Performance TroubleshootingSQLBits 2013
In this precon we will take a default installation of SQL Server, and run a OLTP workload with a several hundred users to generate our initial baseline for performance tuning/troubleshooting.
Klaus Aschenbrenner's Sessions
Latches, Spinlocks, and Lock Free Data StructuresSQLBits 2014
Join this session to make a deep dive into how SQL Server implements physical locking with lightweight synchronization objects like Latches and Spinlocks.
Troubleshooting the most difficult SQL Server problemsSQLBits 2013
Do you have enough from "normal" performance tuning sessions? You can't hear anything about Indexing and Execution Plans anymore? Then you are right in this session!
Troubleshooting TempDbSQLBits 2012
For the most DBAs and DEVs the TempDb is a crystal ball. But the TempDb is the most critical component in a SQL Server installation and is used by your applications and also internally by SQL Server.
SQL Server 2008 Database InternalsSQLBits 2011
Do you already wanted to know how SQL Server 2008 stores a database file physically on the hard drive? In this session you will learn the internal structure of a SQL Server 2008 database file.
Service Broker: Message in a bottleSQLBits 2011
Service Broker provides several new key features for building SOA applications directly with SQL Server 2008.
Understanding SQL Server Execution PlansSQLBits 2011
Do you know SQL Server Execution Plans? Yes! - and can you read/analyze them? No... For the beginner it is not very easy to understand and explain execution plans generated by SQL Server for your queries.
Advanced SQL Server 2008 TroubleshootingSQLBits 2011
It's Friday, 05:00pm. You are just receiving an email that informs you that your SQL Server has enormous performance problems! What can you do? How can you identify the problem and resolve it fast?
Scaleout scenarios with Service BrokerSQLBits 2010
SQL Server 2008 provides a lot of scaleout technologies.
Service Broker: Message in a bottleSQLBits 2010
Service Broker: Message in a bottle
Message in a bottle: Service Broker from 1 to 100 in 75 minutes!SQLBits 2009
Service Broker provides several new key features for building SOA applications directly with SQL Server 2005.
Latches, Spinlocks, and Lock Free Data StructuresSQLBits 2014
Join this session to make a deep dive into how SQL Server implements physical locking with lightweight synchronization objects like Latches and Spinlocks.
Troubleshooting the most difficult SQL Server problemsSQLBits 2013
Do you have enough from "normal" performance tuning sessions? You can't hear anything about Indexing and Execution Plans anymore? Then you are right in this session!
Troubleshooting TempDbSQLBits 2012
For the most DBAs and DEVs the TempDb is a crystal ball. But the TempDb is the most critical component in a SQL Server installation and is used by your applications and also internally by SQL Server.
SQL Server 2008 Database InternalsSQLBits 2011
Do you already wanted to know how SQL Server 2008 stores a database file physically on the hard drive? In this session you will learn the internal structure of a SQL Server 2008 database file.
Service Broker: Message in a bottleSQLBits 2011
Service Broker provides several new key features for building SOA applications directly with SQL Server 2008.
Understanding SQL Server Execution PlansSQLBits 2011
Do you know SQL Server Execution Plans? Yes! - and can you read/analyze them? No... For the beginner it is not very easy to understand and explain execution plans generated by SQL Server for your queries.
Advanced SQL Server 2008 TroubleshootingSQLBits 2011
It's Friday, 05:00pm. You are just receiving an email that informs you that your SQL Server has enormous performance problems! What can you do? How can you identify the problem and resolve it fast?
Scaleout scenarios with Service BrokerSQLBits 2010
SQL Server 2008 provides a lot of scaleout technologies.
Service Broker: Message in a bottleSQLBits 2010
Service Broker: Message in a bottle
Message in a bottle: Service Broker from 1 to 100 in 75 minutes!SQLBits 2009
Service Broker provides several new key features for building SOA applications directly with SQL Server 2005.