This month's T-SQL Tuesday invitation comes from Tracy Boggiano and she's asking us to write about our experiences with Query Store. I thought about what I should write, I'm a big fan of query store and I've used it to help me out on a number of occasions recently. I could write about one of... Continue Reading →
Below is the February list of changes and updates to the Undercover Tools. Undercover Catalogue Update 0.4.2Two new modules were added to the Catalogue. Trace Flags - Capture trace flags which are switched on on your SQL Servers Cluster - Capture details on any clusters that your SQL Servers sit on top of. Undercover Inspector
I decided to write this off the back of a conversation I was having the other day around the SOS_SCHEDULER_YIELD wait type. The conversation went something along the lines of "but David, I'm seeing SOS_SCHEDULER_YIELD, we must have CPU issues". Yes this particular customer had been CPU bound recently but was that really their problem... Continue Reading →
Adrian has a look at the performance benefits of instant file initialisation https://www.youtube.com/watch?v=b6NE-ipzLbQ&feature=youtu.be Below is Ade's auto growth script... DECLARE @trcfilename VARCHAR(1000) ; SELECT @trcfilename = path FROM sys.traces WHERE is_default = 1 SELECT StartTime , DB_NAME(DatabaseID) AS DatabaseName , FileName, SUM(( IntegerData * 8 ) / 1024) AS [Growth (MB)] , ( Duration /... Continue Reading →
Quick video showing you how to install and configure the SQL Undercover Catalogue https://www.youtube.com/watch?v=SJ5YlTGkV5o
David takes a look at a new feature of SQL 2019, table variable deferred compilation https://www.youtube.com/watch?v=pscQwLwYe10&feature=youtu.be
Below is the January list of changes and updates to the Undercover Tools. Undercover Catalogue Update 0.4.0Major upgrade, see https://sqlundercover.com/2020/01/06/undercover-catalogue-0-4-0-released/ for full details Update 0.4.1ServerConfig module added, detailing settings exposed in sp_configure settings Services module fix, adds compatibility with older service packs of SQL2012 and 2014 Addition of an upgrade history table Undercover Inspector Update... Continue Reading →
As always all updates can be found on our Github repo Breaking changes (Powershell collection): We only test the powershell collection against 2-3 servers so please test carefully before rolling out changes especially if you are centralising more servers than we do. Unlike the SQL based agent collections we would recommend running the powershell collection... Continue Reading →
As usual, the scripts in this post can be found HERE on our Git Hub repo If your SQL Server comes across something that it's not happy about, it really wants you to know so it'll pop an entry into the error log. First question of the day, who monitors their error log carefully? Second... Continue Reading →
