Memory grants, now here's a fun thing that can pretty much take your SQL Server to its knees. The Symptoms The first thing that you're going to notice is that your SQL Server is going to be running slowly and I mean, slooooooow! When I've got a server on a serious go slow, the first... Continue Reading →
Sometimes you just want to get a quick row count for a specific table - other times you may want to see a list of tables order by size or row count or perhaps you are monitoring table row counts, whatever it is the chances are you have a script or various scripts stashed away... Continue Reading →
Be sure to get the latest version of this script from our GitHub, https://github.com/SQLUndercover/UndercoverToolbox Have you ever wanted a quick and easy way to see who was holding (and waiting on) locks on a particular database? Perhaps you've got some blocking issues going on and you want to see exactly which rows the row level... Continue Reading →
Here's a little error that I stumbled across the other day when trying to migrate the data files of an Availability Group secondary node onto a nice new SAN. I started off by running the following command against the secondary server. ALTER DATABASE SQLUndercover MODIFY FILE (NAME = 'AG01', FILENAME = 'E:\DATA\AG01.mdf') There's nothing wrong... Continue Reading →
This is going to be a bit of a brain storming post that comes from an interesting question that I was asked today... "I've got a table with a ID code field, now some of the rows have a value in that field and some are NULL. How can I go about filling in those... Continue Reading →
