SQL Homework – July 2019 – Table Size
In general this homework series is meant to give you ideas of things to play with that most if not ... Continue reading
2019-07-01
129 reads
Kenneth Fisher
It’s interesting how an OR short circuits.
I recently did a post on the case expression short circuting and received a very very interesting comment from Chad ... Continue reading
2019-06-27 (first published: 2019-06-17)
866 reads
What does the User Mapping tab of Login Properties really tell us.
In case it’s not clear, we are talking about the Login Properties GUI in SQL Server Management Studio (SSMS). Now, ... Continue reading
2019-06-24
40 reads
How do I force a SQL Login to change it’s password on next login
Forcing someone to change their password on a periodic basis is a pretty common thing, and any time I’ve gotten ... Continue reading
2019-06-19 (first published: 2019-06-05)
551 reads
What permissions do temp stored procedures use?
In a performance tuning class I recently took with Brent Ozar (b/t) he mentioned temporary stored procedures and an interesting ... Continue reading
2019-06-19
92 reads
Does the case statement short circuit?
Let’s start with definitions: CASE Statement: This is basically an inline IF .. ELSE IF .. ELSE IF ….. etc ... Continue reading
2019-06-13
490 reads
What is a distributed transaction?
A while back I did a post defining a transaction. Basically, a transaction is a unit of work. The example ... Continue reading
2019-06-13 (first published: 2019-05-28)
806 reads
The butterfly effect. T-SQL Tuesday #115
This month, our host Mohammad Darab (b/t) has given us an interesting subject. Dear 20 year old self. Where we ... Continue reading
2019-06-11
8 reads
Using VALUES to construct an in-line table.
This has come up a few times recently, I find it rather fascinating and I can never seem to remember ... Continue reading
2019-06-07 (first published: 2019-05-22)
1,146 reads
Bad Idea Cowboy Hat: Using a foreign key to prevent updates
When I decided to rip off of Brent Ozar’s (b/t) Bad Idea Jeans series (yes I asked) I decided that ... Continue reading
2019-06-06 (first published: 2019-05-20)
977 reads
Blogs
Simple Talks Episode 9–Data masking and subsetting
By Steve Jones
The episode on data masking and subetting is out. You can see it here:...
T-SQL Tuesday #180: Avoid Perfect for Good Enough
By Brian Kelley
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
This book was making its rounds on social media, and the concept seems interesting...
Forums
Does SSRS Report with Stored Procedure execute SQL string?
I declare @Where based on the input parameter in the stored procedure. Set @SQL...
SQL Server Constrained Delegation
Hi, hoping someone can help. We're in the process of migrating to a new...
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); GOI 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