Blogs

Perks for My SQLPASS Summit Precon: Prevent Fake News in Your Data! Isolation Levels Demystified

Perks for My SQLPASS Summit Precon: Prevent Fake News in Your Data! Isolation Levels Demystified

By Kendra Little on June 12, 2018 • 3 min read

I’m proud, giddy, and just plain overly excited to be giving a pre conference session at the SQL PASS Summit in Seattle, Washington on November 5, 2018.

This is going to be a fun, demo-packed day which will teach you skills you can use throughout your career as a developer, database administrator, or data professional.

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Two Free Sessions Next Week: Fighting Bad Data and Deadlocks

Two Free Sessions Next Week: Fighting Bad Data and Deadlocks

By Kendra Little on June 7, 2018 • 2 min read

I am excited and honored to be giving two free online sessions next week. Both events are sponsored by the fine folks over at Quest Software.

Why is That Data Wrong? How Choosing the Wrong Isolation Level Causes Bad Results

Tuesday, June 12, Noon Pacific 24 Hours of PASS, Sponsored by Quest Software

If you haven’t thought much about isolation levels in SQL Server, chances are your applications can return inconsistent data to your users: data that looks completely wrong. If your user re-runs their report or reloads their screen, the data may look right the second time… but after this happens, your customer feels that they can’t trust your data.

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Row Width Impact on Version Store Usage under Snapshot Isolation

Row Width Impact on Version Store Usage under Snapshot Isolation

By Kendra Little on May 28, 2018 • 5 min read

A question came up in my webcast today on the topic of Snapshot and Read Committed Snapshot Isolation - what impact will enabling these have on my SQL Server instance?

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Code: Fixing a Filtered Index Which is Causing Data Modifications to Fail

Code: Fixing a Filtered Index Which is Causing Data Modifications to Fail

By Kendra Little on May 23, 2018 • 2 min read

Category: index-tuning

This question came up in a webcast recently: if a filtered index is causing data modifications to fail, does disabling the filtered index fix the problem?

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Free Session! DBA vs Deadlock: How to Out-Index a Deadly Blocking Scenario

Free Session! DBA vs Deadlock: How to Out-Index a Deadly Blocking Scenario

By Kendra Little on May 22, 2018 • 1 min read

DBA vs Deadlock: How to Out-Index a Deadly Blocking Scenario

June 14, 2018 8:30 AM – 9:30 AM PST <- This is past, but no worries, it was recorded

Deadlocks strike fear into the hearts of even seasoned DBAs — but they don’t have to!

In this session, you’ll get the code to cause a sample deadlock in SQL Server. You’ll see how to interpret the deadlock graph to find out where the conflict lies, and how to design an index to make the deadlock disappear.

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What is Deferred Name Resolution, and How Can It Go Wrong?

What is Deferred Name Resolution, and How Can It Go Wrong?

By Kendra Little on May 21, 2018 • 2 min read

I got a question recently about why a particular bit of code was failing when running.

My first thought: oh, that’s probably related to… whatsitcalled.

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Dear SQL DBA: Dealing With a Lack of Control

Dear SQL DBA: Dealing With a Lack of Control

By Kendra Little on May 18, 2018 • 2 min read

Category: dear-sql-dba

This week I discuss a question that I’ve gotten in many forms over the years - a lot of the scenarios are so specific that it’s hard to keep them anonymous, but they can be generalized as a bigger problem: how do I deal with being responsible for things that I can’t fully control?

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