How To Make Your Queries Perform Like They Used To
Photo by Chad Kirchoff on Unsplash
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In the ideal world, you fully test how your SQL Server will handle upgrading to...
2017-09-19
191 reads
Bert Wagner
How To Make Your Queries Perform Like They Used To
Photo by Chad Kirchoff on Unsplash
Watch this week's video on YouTube
In the ideal world, you fully test how your SQL Server will handle upgrading to the latest version. You're able to catch...
2017-09-19
22 reads
';SELECT *: How Unicode Homoglyphs Can Thwart Your Database Security
For the past couple weeks I've been writing about how to protect your database from a SQL injection attack. Today, we will keep the trend going by looking at how...
2017-09-12
65 reads
How to Safely Parameterize Table Names
Protecting against SQL Injection Part 2
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Last week we talked about building dynamic SQL queries and how doing so might leave you open to SQL injection...
2017-09-05
24 reads
Warning! Are your queries vulnerable to SQL injection?
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Looking for a script to find possible SQL injection vulnerabilities on your server? Scroll to the bottom of this post.
OWASP names SQL injection as...
2017-08-29
25 reads
How to Search and Destroy Non-SARGable Queries on Your Server
Unexpected SQL Server Performance Killers #3
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In this series I explore scenarios that hurt SQL Server performance and show you how to avoid them. Pulled...
2017-08-22
25 reads
How to Eliminate Ugly Nested REPLACE() Functions
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How many times have you had to transform some column value and ended up stacking several nested SQL REPLACE() functions like this?
-- Input: Red,...
2017-08-15
15 reads
SQLskills is Giving Away Free Training!
SQLskills is giving away free training for their performance tuning and optimization classes. My entry for the competition is below. If you decide to enter for yourself, entries are...
2017-08-11
10 reads
Why Parameter Sniffing Isn't Always A Bad Thing (But Usually Is)
In this series I explore scenarios that hurt SQL Server performance and show you how to avoid them. Pulled from my collection of "things I didn't know I was...
2017-08-08
16 reads
Are your indexes being thwarted by mismatched datatypes?
In this series I explore scenarios that hurt SQL Server performance and show you how to avoid them. Pulled from my collection of "things I didn't know I was...
2017-08-01
16 reads
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A Challenge of Our Knowledge
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The memory toll of VARCHAR(MAX) in SQL Server
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Transaction Log Truncation
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Question of the Day
Transaction Log Truncation
In SQL Server 2025, where can I find information about items that prevent or delay the transaction log truncation?
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