SQLEspresso

Blog Post

In Memory Table Indexes

Now that I have written about In-Memory Tables and Migrating to In-Memory tables, let’s look at indexes and how they are created and how they work within those tables....

2020-01-27 (first published: )

761 reads

Blog Post

Memory Optimizer Advisor

Previously I wrote about In-Memory Optimized Tables, in this blog I am going to discuss how to determine which tables could benefit from being In-Memory by using a tool...

2020-01-23 (first published: )

451 reads

Blogs

Monday Monitor Tips: Tracking The Cost of Instances

By

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

Social Anxiety and Events Like the PASS Summit

By

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

Thoughts on AI Data Infrastructure Field Day #1

By

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

Read the latest Blogs

Forums

Building Pivot from SSIS with growing list of Month Columns

By Reh23

Good afternoon, I have an SSIS package which loads raw records into a sheet...

Two queries or one?

By Steve Collins

The setup: 3 tables: core_users, core_roles, and core_user_roles.  core users is the "base" table,...

Best Clustered Index Configuration for Partitioned Multi-Tenant Table with RLS

By Jonathan AC Roberts

I’m working with a SQL Server database that supports a multi-tenant application. We have...

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