Robert Pearl

All authors

All authors

Blogs

Simple Talks Episode 9–Data masking and subsetting

By

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

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

By

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

By

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

Read the latest Blogs

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...

Visit the forum

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