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

COUNT, DISTINCT, and NULLs

Watch this week’s episode on YouTube.
One thing I see fairly often (and am occasionally guilty of myself) is using COUNT(DISTINCT)...

2019-03-05 (first published: )

3,472 reads

Blog Post

Why make?

This post is a response to this month’s T-SQL Tuesday #111 prompt by Andy Leonard.  T-SQL Tuesday is a way...

2019-03-01 (first published: )

3,221 reads

Blog Post

Searching Complex JSON Data

Watch this week's video on YouTube
Computed column indexes make querying JSON data fast and efficient, especially when the schema of the JSON data is the same throughout a table.
It's...

2019-02-26

14 reads

Blog Post

Searching Complex JSON Data

Watch this week's video on YouTube
Computed column indexes make querying JSON data fast and efficient, especially when the schema of the JSON data is the same throughout a table.
It's...

2019-02-26

5 reads

Blog Post

COUNT, DISTINCT, and NULLs

Watch this week's video on YouTube
One thing I see fairly often (and am occasionally guilty of myself) is using COUNT(DISTINCT) and DISTINCT interchangeably to get an idea of the...

2019-02-19

6 reads

Blog Post

COUNT, DISTINCT, and NULLs

Watch this week's video on YouTube
One thing I see fairly often (and am occasionally guilty of myself) is using COUNT(DISTINCT) and DISTINCT interchangeably to get an idea of the...

2019-02-19

13 reads

Blog Post

Parsing HTML in SQL Server

Watch this week's video on YouTube
Recently I was asked how to parse text out of an HTML fragment stored in SQL Server.
Over the next few seconds my brain processed...

2019-02-12

3 reads

Blogs

T-SQL Tuesday #192 Invitation: SQL Server 2025 Excitement

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It’s that time of the month again, and once again, I’m late and I’m...

The Book of Redgate: What Our Customers Say

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Export a Power BI Report that cannot be Downloaded

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Yes, you’re reading that right, we’re going to download a report that cannot be...

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Question of the Day

Getting the Indexed Columns

I run this code on SQL Server 2022 to get a list of all the indexes and their key columns. What is returned?

SELECT   
    INDEX_COL (N'AdventureWorks2017.Sales.SalesOrderDetail')

See possible answers