Eyes up here, kid

Free Webcast: Help! My SQL Server Maintenance is Taking Too Long!

“Time for a smoke break.” You manage growing SQL Server databases with shrinking nightly maintenance windows. You just don’t have enough time left each night to do the necessary backups, corruption checking, index maintenance, and data jobs that your users and apps want to run. Cloud storage isn’t helping the problem, either. Stop playing Tetris…
Read More

[Video] What Percent Complete Is That Index Build?

SQL Server 2017 & newer have a new DMV, sys.index_resumable_operations, that show you the percent_completion for index creations and rebuilds. It works, but…only if the data isn’t changing. But of course your data is changing – that’s the whole point of doing these operations as resumable. If they weren’t changing, we could just let the operations…
Read More

Rebuilding Indexes Can Slow Queries Down

Index Maintenance
6 Comments
Today, Jonathan Kehayias wrote about how fragmentation impacts execution plans. I’m really into performance tuning, so I read the post carefully, really interested to see how it impacted query runtime. You should read it too – it’s a great post with a solid demo. But oddly, he didn’t mention the query speeds. I thought that was…
Read More

How To Fix Forwarded Records

Some of our clients have very high forwarded record counts and aren’t aware of it until they run sp_BlitzFirst and get an alert about high Forwarded Records per Second. Some of these clients are using Ola Hallengren‘s IndexOptimize stored procedure to maintain their indexes. This brought up a question of whether or not rebuilding a…
Read More
Tara Kizer

Spring Cleaning Your Databases

Index Maintenance, SQL Server
11 Comments
Even with lots of monitoring in place, we should perform periodic checks of our SQL Servers. Think of this like “Spring Cleaning”, except I would recommend that it be more frequently than just once a year. Doing it monthly might be a bit ambitious due to our busy schedules, but quarterly could be achievable. Below are…
Read More

Testing ALTER INDEX REBUILD with WAIT_AT_LOW_PRIORITY in SQL Server 2014

One of the blocking scenarios I find most interesting is related to online index rebuilds. Index rebuilds are only mostly online. In order to complete they need a very high level of lock: a schema modification lock (SCH-M). Here’s one way this can become a big problem: An online index rebuild starts against a large index A…
Read More

How to Configure Ola Hallengren’s Maintenance Scripts

If you’re a production database administrator responsible for backups, corruption checking, and index maintenance on SQL Server, try Ola Hallengren’s free database maintenance scripts. They’re better than yours (trust me), and they give you more flexibility than built-in maintenance plans. However, the index maintenance defaults aren’t good for everyone. Here’s how they ship: Transact-SQL CREATE PROCEDURE…
Read More
Menu