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.

Blog Post

Recursively Querying Row Groups

Recursively Querying Related Rows Recursive queries are fun to plan and write. They can be frustrating too depending on the complexity of the problem you are trying to solve....

2020-09-02 (first published: )

567 reads

Blog Post

Recursively Querying Row Groups

Watch this week's video on YouTube
Recursively Querying Related Rows
Recursive queries are fun to plan and write. They can be frustrating too depending on the complexity of the problem you...

2020-08-25

3 reads

Blog Post

Moving 1/3 of a heap

Watch this week’s video on YouTube. A Giant Heap Recently I had to filter out 1.2 billion records from a 3.5 billion row heap. Don’t ask me why this...

2020-08-03 (first published: )

278 reads

Blog Post

Moving 1/3 of a heap

Watch this week's video on YouTube
A Giant Heap
Recently I had to filter out 1.2 billion records from a 3.5 billion row heap. Don't ask me why this 3.5 billion...

2020-07-22

2 reads

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Question of the Day

Inserting Transaction Marks

When is a transaction mark first inserted into the msdb.dbo.logmarkhistory table?

See possible answers