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 →
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 →
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 →
In this episode, Adrian looks at some of the new features of the Undercover Inspector1.3 and special guest, Sean McCown give us a fantastic intro into the Powershell SMO (0:23:20). All Sean's scripts can be found at on Git Hub at https://github.com/SQLUndercover/UndercoverToolbox/tree/master/Undercover%20TV%20Scripts/BeginningSMO https://www.youtube.com/watch?v=TCx1UbZ6iLc&t=4s
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 →
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 →
During a recent DR scenario I came across a slight misinterpretation in how availability groups with replicas in synchronous commit behave. How An Availability Group With A Synchronous Secondary Should Behave Under Normal Circumstances Normally, if we've got a secondary replica in synchronous commit mode, our primary can't commit any transactions until that transaction has... Continue Reading →
Firstly, all of us at SQL Undercover would like to wish you a very Happy New Year and all the best for 2019. To sign off for the year, here's a quick run down of the most popular posts from SQL Undercover in 2018. Thanks to everyone who's supported us over the last 12 months.... Continue Reading →
