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

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

5 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

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

10 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

3 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

4 reads

Blogs

Simple Talks Episode 9–Data masking and subsetting

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The episode on data masking and subetting is out. You can see it here:...

T-SQL Tuesday #180: Avoid Perfect for Good Enough

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I'm listening to Effortless by Greg McKeon (link to author's page) through Audible.com. He...

Book Review – Humanizing Data Strategy by Tiankai Feng

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This book was making its rounds on social media, and the concept seems interesting...

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Forums

Does SSRS Report with Stored Procedure execute SQL string?

By danyeungw

I declare @Where based on the input parameter in the stored procedure. Set @SQL...

SQL Server Constrained Delegation

By cw255

Hi, hoping someone can help. We're in the process of migrating to a new...

Get Sum and Last month sum

By GrassHopper

I want to get the sum and I want to get the sum of...

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Question of the Day

Comparing Images

I am building an ETL process between these tables in SQL Server 2022 set to 160 compatibility level:

CREATE TABLE Image_Staging
( imageid     INT NOT NULL CONSTRAINT Image_StagingPK PRIMARY KEY
, imagestatus TINYINT
, imagebinary IMAGE);
GO

CREATE TABLE Images
( imageid       INT NOT NULL CONSTRAINT ImagesPK PRIMARY KEY
, imagestatus   TINYINT
, imagemodified DATETIME
, imagebinary   IMAGE);
GO
I want to run this query to check if the images already loaded exist. This will help me decide if I need to insert or update an image. What happens with this query?
SELECT i.imageid
FROM
  dbo.Image_Staging AS ist
  INNER JOIN dbo.Images AS i
    ON ist.imagebinary = i.imagebinary;

See possible answers