Posts by Brent Ozar

The Top Feature Requests for SQL Server

SQL Server
27 Comments
If you want to get a look at where Microsoft SQL Server is heading in the future, it helps to get an idea of what users are repeatedly asking for. Here’s a quick rundown of the top requests from feedback.azure.com as voted by the people who cared enough to log in and upvote ’em: 10:…
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“Index Seek” Doesn’t Mean Much.

Execution Plans
13 Comments
When you see “index seek” on an execution plan, that doesn’t mean SQL Server is jumping to exactly the row you’re looking for. It only means that SQL Server is seeking on the first column of the index. This is especially misleading on indexes where the first column isn’t very selective. To explain, I’ll take…
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[Video] Office Hours: New Las Vegas Home Office Edition

Videos
2 Comments
It’s the first webcast I’ve done from my new Vegas pad. You posted questions at https://pollgab.com/room/brento/ and I discussed the highest-upvoted ones: 00:00 Introductions 02:15 Jim D: Should I use full backups or log shipping for migrations? 03:53 Sev A: What are the top misuses of SQL Server that are better accomplished without SQL Server?…
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Brent Reading Book

What DBAs Need to Know About Snapshots

Storage
5 Comments
Snapshots by Polaroid? That’s not right. You’re a DBA responsible for making sure SQL Server databases are online, backed up, corruption-free, and fast. Your databases have gradually grown in size over time, and you’re starting to hit new size issues you haven’t encountered before. Nightly maintenance windows are getting smaller, you’re not able to refresh…
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[Video] Office Hours: Last San Diego Balcony Edition

Videos
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It’s the last San Diego balcony edition of Office Hours! You posted your questions at https://pollgab.com/room/brento and upvoted the ones you’d like to see. Here’s what we covered this week: 00:00 Introductions 00:50 Steve E: Hi Brent, How are you enjoying the Porsche 944? 01:55 Midwest DBA: Hey Brent, The wife says my DBA oncall…
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What Do the LCK_M_SCH_M and LCK_M_IS Wait Types Indicate?

You’re investigating your SQL Server’s top wait stats, and you’re noticing a lot of LCK% waits. Normally, that indicates blocking and deadlocks, but you’re just not getting complaints from your end users, and you’re wondering what’s causing it. It might be overzealous index rebuilds. Let’s demo why by starting a new query in the Stack…
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[Video] Office Hours Speed Round: SQL Server Q&A

Videos
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You posted questions at https://pollgab.com/room/brento and I picked the fastest ones to answer: Here’s what we covered: 00:00 Introductions 00:16 Disgruntled App Developer: Hi Brent a friend was recently reprimanded for running a trace in production. The rationale was perf impact and other ‘potential issues’ that weren’t forthcoming. Any thoughts on why traces have an…
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Brent with two Bloody Marys

Get 25% Off Training – This Week Only!

Company News
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I did huge price cuts this month across the board. My individual Mastering class recordings used to be $995. Now it’s just $395 for Mastering Index Tuning, Mastering Query Tuning, Mastering Parameter Sniffing, or Mastering Server Tuning. The Recorded Class Season Pass: Mastering used to be $2,395 for all of my Masters classes. Now it’s…
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Office Hours - ask me anything.

[Video] Office Hours: San Diego Office Edition

Videos
2 Comments
I’m back in the US at my home studio in San Diego, so I did a live Office Hours session. Post your questions at https://pollgab.com/room/brento and upvote the ones you’d like to see me cover. Here’s what we covered today: 00:00 Introductions 00:41 WTF_SQLServer!?!: I have a some dbs that take nearly 6 hours each…
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[Video] Office Hours: Ask Me Anything at Sunset on the Balcony

Videos
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Ah, sunset – time to kick back on the balcony, watch the ocean, and discuss SQL Server. You post questions at https://pollgab.com/room/brento/, upvote the ones you’d like to see me answer, and I discuss ’em: 00:00 Introductions 00:30 iAmGroot: Hello Brent, my friend has a VLDB and he’s asking what is a good strategy to…
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