You know what it's like, you need to fail your AG over but is it safe to fail over? Perhaps you've clicked on 'failover' for the AG and there's a little green tick and no data loss reported... Or maybe you've checked out sys.dm_hadr_database_replica_cluster_states and 'is_failover_ready' is reporting a 1. So, you're cool to failover,... Continue Reading →
It wasn't until the other day that I realised what the behaviour was when rolling back a transaction with an insert on a table with an identity column, to be fair I have never had a need to do so but I know that there are people who like to run code like below to... Continue Reading →
This months TSQL Tuesday is hosted by Shane O'Neill (Blog | Twitter) Shane explains the Topic as: Dipping into the Cookie Jar is about when the going gets tough and you don’t think you can handle anymore, then you think back about your accomplishments and take some sustenance from them. Cookie One: is remembering... Continue Reading →
This month's TSQL Tuesday comes from Shane O'Neil and he's asking us to 'dip into the cookie jar' (or raid the biscuit tin, for us Brits 😉 ), essentially how we use past accomplishments to help us through difficult or challenging times. I've been trying to think about this and while like everyone I've had... Continue Reading →
A while back, I was having a conversation about a deadlocking issue and suggested that an index could perhaps help solve it. The reaction I got was along the lines of, 'What, how can in index solve a deadlocking issue?' So, can we solve a deadlocking issue with an index? Let's create a rather simple,... Continue Reading →
Post Updated: Replaced Query 3 with transactions/sec query. When we first published 7 ways to Query Always On Availability Groups using SQL we had no idea it would so popular! So here is a quick post with 7 more ways to query Always on availability groups using TSQL, its always handy to have a few little... Continue Reading →
Please see https://sqlundercover.com/undercover-catalogue-0-2/ for full details on the Undercover Catalogue and how to obtain it. We've spotted an issue where unicode datatypes were having their size recorded as the data length rather than character count in the 'Tables' module. Another issue affected any MAX datatypes which were having their length mis-recorded. Version 0.2.1 fixes both... Continue Reading →
It's 4am in the morning and my phone starts ringing. A blury eyed, me picks it up to hear the voice of one of our application guys at the other end saying something about an upgrade he was trying to carry out failing. So it turns out that he was trying to run an ALTER... Continue Reading →
We're pleased to announce the release of the Undercover Catalogue 0.2 and can be downloaded from https://github.com/SQLUndercover/UndercoverToolbox/tree/master/SQLUndercoverCatalogue The new version brings with it a number of new modules as well as the thing that we're most excited about, a Power Bi dashboard to make keeping track of your SQL Server estate even easier. Power BI... Continue Reading →
