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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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

9 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: )

284 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

7 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

6 reads

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Blogs

A Broken Copilot Query

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I was testing the new SSMS (v22 Preview 3) with Copilot and ran into...

SQL Server Alerts

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Don’t Let Trouble Sneak Up on You   Most SQL Servers run quietly. Until...

Prompt AI helping with Auditing

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I had a conversation with a customer asking this question: how can I tell...

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Forums

Create an HTML Report on the Status of SQL Server Agent Jobs

By Nisarg Upadhyay

Comments posted to this topic are about the item Create an HTML Report on...

Collation errors...what is best way to deal with it?

By water490

Hi I have a SP that occasionally get this error: Cannot resolve the collation...

Was the index created or not?

By water490

Hi everyone I am getting an error when I create the index but I...

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Question of the Day

Estimated Rows

I have two calls to the GENERATE_SERIES TVF in this code: 

SELECT   TOP 10 gs.value
FROM     GENERATE_SERIES(1, 10) AS gs
ORDER BY NEWID ()
OPTION (RECOMPILE);
go
DECLARE @a int = 10;
SELECT   TOP (@a) gs.value
FROM     GENERATE_SERIES(1, @a) AS gs
ORDER BY NEWID ()
OPTION (RECOMPILE);
In the actual query plans, what is the estimated number of rows for each batch in SQL Server 2022?

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