Wayne Sheffield

My blog about SQL Server

Browsing Posts in SQL

In several of my last few blog posts, I’ve shared several methods of getting internal information from a database by using the DBCC PAGE command and utilizing the “WITH TABLERESULTS” option to be allowed to automate this process for further processing. This post will also do this, but in this case, we’ll be using it […]

In a prior blog post, I demonstrated how using DBCC PAGE can be automated by using the “WITH TABLERESULTS” option. In this post, we will continue with another look at how this can be done. On a nice wintry day, your city ended up being covered in several feet of snow. During the course of […]

How SQL Server uses Windows Virtual Accounts and local groups Managed Service Accounts (MSAs) and Virtual Accounts were introduced in Windows 7 / Windows 2008R2 (link). Installations of SQL Server 2012 and newer will utilize the Virtual Accounts. SQL Server 2008 / 2008R2 installations use a combination of the local groups and Virtual Accounts, and […]

Way back in 2006, Paul Randal documented DBCC PAGE on his Microsoft blog at http://blogs.msdn.com/b/sqlserverstorageengine/archive/2006/06/10/625659.aspx. In his post, you will notice that in order to return the output from DBCC PAGE to the screen, you need to enable trace flag 3604 first. The above blog post shows a few examples of the results and utilizing […]

It’s that time of the month… the time when all of the T-SQL bloggers have a party and blog about a specific topic. Unfortunately, it’s been a few months since I’ve written a T-SQL Tuesday post. I’m hopeful that I can use this post to get back in the groove and participate in this monthly […]

Most of the DBCC commands return their results as textual output, even if you have SSMS configured to return result sets to a grid. This makes examining the output a manual process that is prone to errors. It sure would be nice if there was a way to return the output to a grid. If […]

October… the month of Halloween. Spooky events. SQL Server has all kinds of Halloween-ish themed activities like Split Brains, Zombies, Ghosts, Phantoms, and of course Halloween itself. In this post, we’re going to mill about with Phantoms a bit. Phantoms in SQL Server are actually called “Phantom Reads”. This ectoplasmic phenomenon manifests itself when an […]

Page Splits 101 In SQL Server, a page split occurs on index pages when a row is required to be on a certain page (because of the index key), and there isn’t enough room on the page for it. This can be from either an insert operation, or an update operation. When this occurs, that […]

TCP Chimney Offload transfers network traffic workload processing from the CPU to a network adapter that supports TCP Chimney Offload. This feature was introduced with Windows Server 2003 SP2, and it was called the Microsoft Scalable Networking Pack (SNP). Since Windows Server 2008, these features are a base part of these operating systems, so they […]

Are you going to the PASS Summit this year? (and if not… why not?) Are you coming in to Seattle on or before Monday? Are you not attending any of the wonderful precons at the PASS Summit on Monday? Then I have a great deal for you. Free SQL Training! Several friends have teamed up […]