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.

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Data Type Precedence and Implicit Conversions

by Bert Wagner

Bert Wagner

Watch this week's video on YouTube
SQL Server needs to make sure data types match when performing operations that involve multiple pieces of data.
When the data types do not match,...

2019-04-09

4 Reasons To Avoid VARCHAR(8000)

by Bert Wagner

Bert Wagner

Watch this week’s episode on YouTubeWhen first learning SQL Server, I had the brilliant idea of defining every column on...

2019-04-05 (first published: 2019-03-19)

1,556 reads

Testing with Temporary Stored Procedures

by Bert Wagner

Bert Wagner

Watch this week's video on YouTube
A while back I learned that it's possible to create temporary stored procedures in SQL Server.
I never put that knowledge into practice however because I...

2019-04-02

Dipping into the Cookie Jar

by Bert Wagner

Bert Wagner

This post is a response to this month’s T-SQL Tuesday #112 prompt by Shane O’Neill. T-SQL Tuesday is a way for the SQL...

2019-03-29 (first published: 2019-03-12)

284 reads

Joining on NULLs

by Bert Wagner

Bert Wagner

It’s important to be aware of columns that allow NULL values since SQL Server may handle NULLs differently than you might expect. Today I want to look at what...

2019-03-26

19 reads

Joining on NULLs

by Bert Wagner

Bert Wagner

Watch this week's video on YouTube
It's important to be aware of columns that allow NULL values since SQL Server may handle NULLs differently than you might expect.
Today I want...

2019-03-26

4 Reasons To Avoid VARCHAR(8000)

by Bert Wagner

Bert Wagner

Watch this week's video on YouTube
When first learning SQL Server, I had the brilliant idea of defining every column on my table as VARCHAR(8000). After all, the VARCHAR datatype...

2019-03-19

1 reads

Time Zones and Daylight Saving Time

by Bert Wagner

Bert Wagner

Watch this week’s episode on YouTubeAT TIME ZONE is great because it makes it easy to perform daylight saving time and...

2019-03-19 (first published: 2019-03-05)

7,674 reads

Dipping into the Cookie Jar

by Bert Wagner

Bert Wagner

This post is a response to this month's T-SQL Tuesday #112 prompt by Shane O'Neill. T-SQL Tuesday is a way for the SQL Server community to share ideas about different database and...

2019-03-12

Gaps and Islands Across Date Ranges

by Bert Wagner

Bert Wagner

Watch this week’s episode on YouTube.In a traditional gaps and islands problem, the goal is to identify groups of continuous...

2019-03-12

1,791 reads

All authors

Bert Wagner

Data Type Precedence and Implicit Conversions

4 Reasons To Avoid VARCHAR(8000)

Testing with Temporary Stored Procedures

Dipping into the Cookie Jar

Joining on NULLs

Joining on NULLs

4 Reasons To Avoid VARCHAR(8000)

Time Zones and Daylight Saving Time

Dipping into the Cookie Jar

Gaps and Islands Across Date Ranges

Blogs

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Connect to Power BI as a Guest User in another Tenant

Parsing EXE Output in PowerShell

Forums

GIT Configuration and Automated Release for Azure Data Factory

Azure SQL Managed Instance: RESTORE HEADERONLY is terminating abnormally. (Micro

I'm asking for guidance on how to best discover PK-FK relationships

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Concat Addition