Bert Wagner

Bert Wagner is a Business Intelligence Developer at Progressive Insurance. He enjoys solving challenging data transformations with T-SQL and optimizing for query performance. In addition to BI development, Bert loves building ASP.NET MVC web apps and building Internet of Things projects.

All authors

Visualizing Merge Join Internals And Understanding Their Implications

by Bert Wagner

Bert Wagner

This post is part 2 in a series about physical join operators (be sure to check out part 1 - nested loops joins, and part 3 - hash match...

2018-12-18

16 reads

Visualizing Nested Loops Joins And Understanding Their Implications

by Bert Wagner

Bert Wagner

This post is the first in a series about physical join operators (be sure to check out part 2 - merge joins, and part 3 - hash match joins).

Watch...

2018-12-11

25 reads

Visualizing Nested Loops Joins And Understanding Their Implications

by Bert Wagner

Bert Wagner

This post is the first in a series about physical join operators (be sure to check out part 2 – merge...

2018-12-11

1,035 reads

Visualizing Nested Loops Joins And Understanding Their Implications

by Bert Wagner

Bert Wagner

This post is the first in a series about physical join operators (be sure to check out part 2 - merge joins, and part 3 - hash match joins).

Watch...

2018-12-11

25 reads

4 SQL Injection Techniques For Stealing Data

by Bert Wagner

Bert Wagner

Watch this week’s episode on YouTubeI’m not advocating that you start using SQL injection to start stealing other people’s data.

However,...

2018-12-05 (first published: 2018-11-20)

3,384 reads

Two Words For Faster Scalar Functions

by Bert Wagner

Bert Wagner

Watch this week’s episode on YouTube.WITH SCHEMABINDING optimizations were added all the way back in SQL Server 2005. So why...

2018-12-04

240 reads

Two Words For Faster Scalar Functions

by Bert Wagner

Bert Wagner

Watch this week's video on YouTube
WITH SCHEMABINDING optimizations were added all the way back in SQL Server 2005. So why bother talking about them in 2018?
Because no one is...

2018-12-04

24 reads

Two Words For Faster Scalar Functions

by Bert Wagner

Bert Wagner

Watch this week's video on YouTube
WITH SCHEMABINDING optimizations were added all the way back in SQL Server 2005. So why bother talking about them in 2018?
Because no one is...

2018-12-04

19 reads

Brute Forcing SQL Logins and Passwords

by Bert Wagner

Bert Wagner

Watch this week's video on YouTube
Following up on last week's post about the different types of SQL injection, this week I want to show how injection can be used...

2018-11-27

8 reads

Brute Forcing SQL Logins and Passwords

by Bert Wagner

Bert Wagner

Watch this week’s episode on YouTube.Following up on last week’s post about the different types of SQL injection, this week...

2018-11-27

1,057 reads

All authors

Bert Wagner

Visualizing Merge Join Internals And Understanding Their Implications

Visualizing Nested Loops Joins And Understanding Their Implications

Visualizing Nested Loops Joins And Understanding Their Implications

Visualizing Nested Loops Joins And Understanding Their Implications

4 SQL Injection Techniques For Stealing Data

Two Words For Faster Scalar Functions

Two Words For Faster Scalar Functions

Two Words For Faster Scalar Functions

Brute Forcing SQL Logins and Passwords

Brute Forcing SQL Logins and Passwords

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