The following is chapter 4 from my Common Table Expressions book in its entirety. READER NOTE: Please run the CTEBookSetup.sql script in order to follow along with the examples in this chapter. The script mentioned in this chapter is available at http://SteveStedman.com. Recursive CTEs Have you ever solved a maze puzzle on paper, or had the opportunity to visit a …
I received this question from someone visiting the blog, and realized that rather than just replying to them, it might be good to put the options out there for everyone to see. Hello, I came across your website and it seems that you are an SQL expert, I’m just getting started. I was wondering can you please give some guidance on …
So often I run into examples where someone is inserting a row and trying to get one of the values from that row that was just inserted. For instance an integer identity id value or just to be able to see the row after it was inserted. Introducing the OUTPUT clause, and often overlooked or forgotten tool in SQL Server. …
At our February webinar presentation on Database Corruption, Stedman Solutions will be giving away 3 daily checkup subscriptions one 3-month subscription, one 6-month subscription and one 9-month subscription. A value of $300, $600, and $900 each! If you are not familiar with our SQL Daily Checkup product, here is how it works. You need to have Database Health Monitor (free) …
Prize giveaway at the February webinar presentation Read more »
The following is Chapter 3 from my Common Table Expressions book it its entirety. CTEs Instead of Derived Tables One time I was handed an eight page print out with an 8pt font showing a single SQL statement. It was handed to me with a question about why it was not returning the right data. After looking the query over …
SQL Daily Checkup from Stedman Solutions, LLC. We provide monitoring tools that alert us and you when there is an issue so that we can recommend fixes before the issue becomes a bigger problem. The notification runs every hour and alerts us of issues that may require your attention. Over time even on the best configured SQL Servers, things change. …
On a number of recent installs of SQL Server that I have worked on, I have noticed that the SQL Configuration Manager has been missing from the start menu, not sure if someone deleted it from the menu, or if the icon was just not added. The SQL Configuration Manager is an important tool for configuring the sql instances installed …
When working with SQL Server transactional replication, one of the common checks to see if things look healthy is to insert a tracer token into the replication data stream and see how long it takes to get to the subscribers. This is a process that can be very tedious if you have multiple publications to check, as you need to …
On February 17, 2021 at 6:00pm Pacific time Derrick Bovenkamp and I will be presenting a webcast training on SQL Server Database Corruption. After repairing dozens of corrupt databases over the last 6 years we are going to share our experiences. Some of the good, the bad, and the ugly of corrupt databases. What things people did to make it …
XP_CMDSHELL is one of those features that is turned off by default on SQL Server and needs to be turned on to function. If xp_cmdshell has not been turned on you will get this error when you try to use it. Msg 15281, Level 16, State 1, Procedure xp_cmdshell, Line 1 [Batch Start Line 17]SQL Server blocked access to procedure …