Andrew J. Kelly

Andrew J.
Kelly

Andrew J. Kelly is a SQL Server MVP with over 20 years' experience with relational databases and application development but specializes in performance, scalability and maintainability of large scale SQL Servers. He is a regular speaker each year and a contributing editor and writer for SQL Server Pro.

Articles
SQL Server Profiler or Server-Side Trace? 1
Did you know that using SQL Server Profiler can have an impact on the performance of your production servers? Check out these test results comparing SQL Server Profiler with a server-side trace.
Rebuild Only the Indexes that Need Help 9
Avoid re-indexing pandemonium by using the rebuild_indexes_by_db stored procedure to tackle only indexes that actually need help.
Who's Hogging My Server?
Obtain performance metrics by using SQL Server 2005’s built-in sys.dm_exec_plan_attributes DMV.
In Search of Duplicate Indexes on Your Tables 4
Heed this advice about how to identify duplicate or redundant indexes on the tables in your databases.
Dissecting SQL Server’s Top Waits
You know how to collect and report on wait stats. Now, let’s focus on a few wait stats that typically account for most overall system waits.
Are Your SQL Server Statements Performing Well? 7
SQL Server 2005 offers a relatively easy way to determine which SQL Server statements are causing you the most pain. A built-in DMV does the trick.
A SQL Server 2005 DMV Cleans Up Your Indexes 8
A SQL Server 2005 DMV eases the burden of cleaning up unused indexes. Get it working in your instance.
Boost Performance with Parallel Processing 2
Learn when and how to use SQL Server's parallel-processing settings, and you'll be able to achieve the best balance between concurrency and speed for your unique environment.
Getting to Know Wait Stats 4
SQL Server's built-in DMV functionality offers all kinds of management potential. This month, we show you how to monitor wait stats on your SQL Server instance.
Getting to Know Virtual File Stats 1
This built-in SQL Server 2005 DMV lets you see exactly what type of physical I/O your SQL Server system is experiencing when you're reading from or writing to the files on disk. Learn how to get the most out of it.
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From the Blogs
Baby duck swimming alone
Jul 15, 2014
blog

The Marginalization of SQL Server Standard Edition 5

Microsoft seems to be bent on marginalizing SQL Server Standard Edition—both in the sense of the artificial constraints placed upon how much memory it can use, and in terms of what seems to be a shift in focus on the role of Standard Edition from Microsoft....More
Jul 8, 2014
blog

Replication: Sometimes More is Less

The unconventionality of having two publications for complex, unruly databases typically ends up saving huge amounts of time over the long haul and makes replication much easier to manage....More
Red restore key on computer keyboard
Jun 24, 2014
blog

AlwaysOn Availability Groups and Third Party Log Readers

When DBAs and SysAdmins learn the ins-and-outs of AlwaysOn Availability Groups, they’re then able to address high availability and disaster recovery concerns from a single interface or set of tooling, thus providing better scalability of management....More
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