Search Results for &#8220;extended event&#8221;

This week, Brent, Erik, Tara, and Richie discuss restoring databases from Enterprise Edition to Standard Edition servers, their favorite way of collecting SQL server metrics, extended events, career advice, how to tell what processes SQL uses memory for, and much more! Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe…

[Video] Office Hours 2016/11/16 (With Transcriptions)

Last Updated November 19, 2016

This week Richie, Tara, and Erik discuss replication, mirroring, memory grants, sp_BlitzCache, failover cluster instances, VLFs, restoring databases, qualifying schema and object names, multiple instances, and table variables. Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe to our podcast to listen on the go. Enjoy the Podcast? Don’t miss…

[Video] Office Hours 2016/11/02 (With Transcriptions)

Last Updated November 5, 2016

This week, Brent, Richie, Tara, and Erik discuss vendor licensing, rebuilding indexes, analysis services, using trace flag 174, and the team’s PASS Summit impressions and highlights. Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe to our podcast to listen on the go. Enjoy the Podcast? Don’t miss an episode,…

Set Statistics… Profile?

Last Updated February 13, 2017

Development

Forgotten, But Not Gone Two of the best built-in tools to figure out if your query tuning efforts are headed in the right direction are SET STATISTICS TIME ON and SET STATISTICS IO ON. If you’re really fancy, you can use SET STATISTICS TIME, IO ON. By fancy I mean lazy. By lazy I mean…

What To Do If sp_BlitzFirst Warns About High Compilations

Last Updated November 16, 2017

First Responder Kit, sp_BlitzFirst, SQL Server

Compiles Aren’t The Same As Recompiles If you’re seeing high RECOMPILES, this post isn’t for you. We’ll talk about the differences between compiles and recompiles, but not how to troubleshoot recompiles. Recompiles mean one of two obvious things: You have a RECOMPILE hint at the stored procedure or statement level, or SQL found a reason…

[Video] Office Hours 2016/09/14 (With Transcriptions)

Last Updated April 9, 2017

Execution Plans, SQL Server

This week, Brent, Richie, and Erik discuss execution plans for table value functions, how to prepare for the Senior DBA course, source control software, generating fragmentation, backups, and the new TV shows the team is looking forward to this season. Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe to…

Query Tuning Week: How to Start Troubleshooting a Slow Stored Procedure

Last Updated April 9, 2017

Brent Ozar

When you need to find out why a stored procedure is running slow, here’s the information to start gathering: Check to see if the plan is in the cache. Run sp_BlitzCache® and use several different @sort_order parameters – try cpu, reads, duration, executions. If you find it in your top 10 plans, you can view…

An Introduction to Query Memory

Last Updated May 26, 2020

Brent Ozar

Execution Plans, Memory Grants, Parameter Sniffing, SQL Server

Microsoft has been quietly making some amazing improvements for performance tuners in SQL Server 2012, 2014, and 2016. This week, we’re going to introduce you to just how awesome they are. (They being the improvements, not Microsoft. You already knew they were awesome.) Using the freely available StackOverflow database, let’s start with a simple query…

[Video] Office Hours 2016/07/06 (With Transcriptions)

Last Updated April 9, 2017

SQL Server

This week, Brent, Jessica, Richie, Doug, and Angie discuss snapshot replication, file and table-level restores, whether you should enable lock pages in memory, redistributing data across files or a database, and Doug’s new video class. Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe to our podcast to listen on…

Availability Group Direct Seeding: Mind Your Backup Jobs

Last Updated February 9, 2017

Always On Availability Groups, Backup and Recovery, SQL Server

I’ll get right to the point While you’re Direct Seeding, you have to be careful with any other full or differential backup jobs running on the server. This is an artifact of the Direct Seeding process, but it’s one you should be aware of up front. In the screencap below, courtesy of sp_whoisactive there’s a…

Availability Group Direct Seeding: TDE’s Frenemy

Last Updated February 9, 2017

Always On Availability Groups, SQL Server

From the Mailbag In another post I did on Direct Seeding, reader Bryan Aubuchon asked if it plays nicely with TDE. I’ll be honest with you, TDE is one of the last things I test interoperability with. It’s annoying that it breaks Instant File Initialization, and mucks up backup compression. But I totally get the…

Availability Group Direct Seeding: How to fix a database that won’t sync

Last Updated February 9, 2017

Always On Availability Groups

This post covers two scenarios You either created a database, and the sync failed for some reason, or a database stopped syncing. Our setup focuses on one where sync breaks immediately, because whatever it’s my blog post. In order to do that, I set up a script to create a bunch of databases, hoping that…

[Video] Office Hours 2016 2016/06/01 (With Transcriptions)

Last Updated June 10, 2016

This week, Brent, Angie, Erik, Tara, Jessica, and Richie discuss SSMS issues, security auditing, snapshot replication, SSIS Cache Connection Manager, AlwaysON Availability Groups, deadlocks, and Jessica’s trip to Mexico. Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe to our podcast to listen on the go. Office Hours Webcast – 2016-06-01…

[Video] Office Hours 2016 2016/05/11

Last Updated May 14, 2016

This week, Brent, Angie, Erik, Jessica, Richie, and Tara discuss backups, failover events, tempdb errors, errors, other errors… oh, did we mention errors? Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe to our podcast to listen on the go. How do you feel about third party backup software? Jessica…

Why monitoring SQL Server is more important than ever

Last Updated February 13, 2017

Monitoring

Moving parts SQL Server keeps on growing. With every new edition, you get more features, feature enhancements, and uh, “feature enhancements”. As I’m writing this, SQL Server 2005 is less than a week away from support ending, and SQL Server 2016 is up to RC2. Brent’s retrospective post got me thinking a bit. We went…

[Video] Office Hours 2016 2016/05/04

Last Updated May 8, 2016

This week, Richie, Erik, Angie, and Tara discuss deadlocks, replication, SQL Server 2016 features, and more. Here’s the video on YouTube: You can register to attend next week’s Office Hours, or subscribe to our podcast to listen on the go. Transcript: Does NVARCHAR(255) Cost More Than NVARCHAR(30)? Angie Walker: All right. So Steve has a nvarchar(255) column that…

One weird trick for managing a bunch of servers

Last Updated April 28, 2016

SQL Server

Let’s face it, most people don’t have just one SQL Server How many they tell Microsoft they have is another matter, but let the record show that I don’t condone licensing dishonesty. But going one step further, most places… Well, they’re ‘lucky’ if they have one DBA, never mind a team. Everyone else: Give me…

Why most of you should leave Auto-Update Statistics on

Last Updated February 13, 2017