SQL Server Optimisation / Performance Tuning - Advanced UK Classes & Lessons (Microsoft)

About this class

SQL Server is Microsoft's flagship database product and is a strong challenger to Oracle's long held dominant position as market leader.

The constant demand for more flexible, deeper, and generally larger databases means that performance becomes a serious issue when your business depends upon instant access to that data.

This course has been written to cover all the main aspects of tuning the performance of SQL Server (applies to versions 2000 and 2005). It builds upon several sections of the programming course and the administration course, focusing in on those aspects of SQL Server that potentially cause performance bottlenecks.

Who will the lesson benefit?

Developers and administrators familiar with SQL Server needing to know about troubleshooting techniques and tips to improve database performance.

What delegates will learn

By the end of the course delegates will gain:

A theoretical overview to potential performance problems.
A hands-on guide to the diagnostic tools available within the core product to identify specific performance-related problems.
A thorough grounding in the transact-SQL commands that help you analyse the status of tables and optimiser behaviour.
Solid advice on tips and techniques to overcome these problems, keep them at bay and stop them happening in the first place

What prerequisites are required

Delegates should have a good background knowledge of SQL Server.

Contents of this class

Database Performance - What's 'Good' and why?

Relational Database Overview
The Query optimiser, compilation and caching.
Locking and Logging and how updates happen.
How backups work, how DTS packages work.

Optimal Data Storage

Using File groups to Position Objects
The affect of normalisation and de-normalisation.
Analysis Services - a reporting solution in waiting?

Diagnostic Tools

Task Manager; Performance Monitor - General counters to look out for, tips and techniques.
Current Activity Window & SQL Profiler - Zooming in on problem queries
Query Analyser - Decrypting the showplan and trace output. Other set commands.
Transact SQL diagnostic commands. Various DBCC commands, some undocumented.

Index Optimisation

Index selection - How the optimiser decides.
Statistics - Auto and Manual.
Clustered versus Non-Clustered - Pros and Cons
The Fillfactor factor
Index optimiser hints
Index Covering
Index tuning wizard, when to use it.
Index Maintenance. Dangers and pitfalls.
Table defrag with clustered indexes. When and when not to do it.
Indexed Views - Advanced index builds.

Locking Optimisation

The City Analogy; Keeping the traffic flowing
Transaction isolation levels and locking hints
Deadlock resolution
Table restructuring & de-normalisation, replication and data warehousing solutions

Efficient Programming in TSQL

SARGS and the WHERE clause.
Covered indexes from the other side.
Stored procedures: Problems solved and created
Trigger problems and solutions
Cursors and Temporary tables
Tips and tricks.

Efficient Client Programming

Most of this course focuses on the server side application. However there is also a number of potential problems that may occur from the client side too. This section makes no assumption on which client you will be using, except that it will use ActiveX Data objects.

Default recordset options.
Send SQL versus Stored Procedures
Efficient use of recordsets and connections.
Timeout management and giving the user the perception of better performance

Associated Courses

SQL Server 2005 training
SQL Server 2000 Applications Development training
SQL Server 2000 Database Administration
SQL Server Performance Tuning
SQL Server OLAP, DTS, Data Warehouses & Cubes / Analysis Services Training
SQL Design and Information Retrieval