Trace Flag 4199 has been in SQL Server for a while. I’ve long thought of this as the “Bucket of Optimizer Hotfixes” trace flag: enabling it turns on a variety of hotfixes that have been implemented over the years.
As I’ve gotten back into the swing of a more-or-less regular work schedule after the initial launch of SQL Workbooks, I’ve revived some of my favorite work habits and free tools. Tracking time with Toggl I’m a big fan of the time-tracking tool Toggl. Their tools are easy to use, and even the free version is very cool. Tracking time may seem like a giant pain if you’re used to using terrible tools for it.
A little while back I wrote about Why Indexes Reduce Locks for Update and Delete Queries.
I got a great question on the post from Zac:
What’s not super clear is why it takes out a lock on the whole table, is this because it does a lock escalation as a result of the Full Scan? Will this always happen, or is there a threshold of record update counts where this will occur?
This was tough to answer in just a comment, so I promised a full post on the topic.
A database transaction log is expanding, even though the DBA is running log backups and doesn’t see an open transaction? What’s going on with this Availability Group?
I recently got an interesting question from a reader about running a CREATE INDEX statement with DROP_EXISTING
I’ve started up a weekly newsletter! Sign up, and each Tuesday you’ll get a link to a quick SQL Server quiz or poll in your inbox. Most weeks there will be a cartoon thrown in there, too.
SQL Server Management Studio is so full of tiny buttons and options that it can be easy to miss out on secrets that could make your life easier and more fun.
I’ve got a new online course that shows you my favorite secret tricks and goodies in SSMS!.
A few episodes ago, I talked about how learning about Write Ahead Logging was a light bulb moment for me, and helped me learn tons of concepts about backups and recovery.
This week, we talk about when SQL Server turns things upside down and doesn’t use write ahead logging: and what it has to do for recovery in these special cases.
I’ve never claimed to be great at math, but until recently I thought I knew how to count to one. Zero… one. That’s what we learned in kindergarten.
Apparently SQL Server didn’t go to kindergarten.
Last week I answered a set of fun interview questions from Mohammad Darab. One question that he asked really jumped out at me:
What are you most proud of doing/accomplishing for the SQL Server community so far in your career?
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