Gerardo Galvan


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Monday Monitor Tips: Tracking The Cost of Instances

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One of the things that I’ve been asked in every operations situation is what...

Social Anxiety and Events Like the PASS Summit

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If you are an introvert like me, events like the PASS Summit can call...

Thoughts on AI Data Infrastructure Field Day #1

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On October 2nd and 3rd, I took part in an amazing event called AI...

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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;

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