SQLBits 2015

SQL2014 : The all new cardinality estimator

In SQL Server 2014, there have been many changes aimed at giving a more accurate number of rows, and therefore better plans. This session will be a look at these changes, comparing and contrasting with SQL2012/2008 to see how they help.

A vital component inside the query optimizer is the cardinalityestimator, these algorithms calculate the estimated numberof rows that will be outputted from each operator. In SQL Server 2014, therehave been many changes aimed at giving a more accurate number of rows, andtherefore better plans.This session will be a look at these changes, comparing andcontrasting with SQL2012/2008 to see how they help.

Dave Ballantyne's previous sessions

Estimation and Statistics : The Basis of query optimization

This will be a deep dive into how the optimizer makes its decisions to give you a plan, the things that can go wrong and how you can have influence over these choices.

SQL2014 : The all new cardinality estimator

In SQL Server 2014, there have been many changes aimed at giving a more accurate number of rows, and therefore better plans. This session will be a look at these changes, comparing and contrasting with SQL2012/2008 to see how they help.

Query Optimizer Internals : Traceflag fun

The query optimizer is at the heart of SQL Server. Much of the its' internal workings are hidden from the user, but can be revealed by using a selection of undocumented trace flags. This session will be a deep dive into the these internals.

Estimation, Statistics and “Oh My!”

At the heart of SQL Server is the cost based optimizer. This is driven by estimates and they in turn are driven by statistics. This will be a deep dive into how the optimizer makes its decisions to give you a plan, the things that can go wrong.

SSIS Custom Components

Writing your first SSIS custom components can seem like a very steep learning curve. In this session i shall walk you through a simple skeletal one to start you on your way.

Whats new in Denali-TSQL

A look at the new TSQL functionality within denali

TSQL Techniques - Why and how to tune a routine

An overview of some everyday TSQL tuning techniques.