A Non-Technical Reason to Not Use SELECT *
I got a merge a while back that included a change I wasn’t expecting from one of my developers. All they were doing was renaming a column on a...
2021-01-19
21 reads
Azure SQL vCore vs DTU
If you are building database solutions in Azure , using Azure SQL Database then you will know that you have a purchasing option decision to make. That being should...
2021-01-19
309 reads
A Non-Technical Reason to Not Use SELECT *
I got a merge a while back that included a change I wasn’t expecting from one of my developers. All they were doing was renaming a column on a...
2021-01-19
9 reads
Create an S3 Lifecycle Policy with PowerShell
First, I’m a big believer in doing infrastructure as code.
Using the AWS SDK with any library is great, but for things like S3 I’d highly recommend you use a...
2021-03-24 (first published: 2021-01-19)
124 reads
Synapse Analytics and .NET for Apache Spark Example 2 - ROW_NUMBER()
The next example is how to do a ROW_NUMBER(), my favourite window function.
T-SQL SELECT *, ROW_NUMBER() OVER(ORDER BY dateTime) as RowNumber FROM chicago.safety_data Spark SQL SELECT *, ROW_NUMBER() OVER(ORDER...
2021-01-18
15 reads
Synapse Analytics and .NET for Apache Spark Example 2 - ROW_NUMBER()
The next example is how to do a ROW_NUMBER(), my favourite window function.
T-SQL SELECT *, ROW_NUMBER() OVER(ORDER BY dateTime) as RowNumber FROM chicago.safety_data Spark SQL SELECT *, ROW_NUMBER() OVER(ORDER...
2021-01-18
64 reads
Synapse Analytics Spark Example 2 - ROW_NUMBER()
The next example is how to do a ROW_NUMBER(), my favourite window function.
T-SQL SELECT *, ROW_NUMBER() OVER(ORDER BY dateTime) as RowNumber FROM chicago.safety_data Spark SQL SELECT *, ROW_NUMBER() OVER(ORDER...
2021-01-18
428 reads
Synapse Analytics and .NET for Apache Spark Example 1 - Group By
I have been playing around with the new Azure Synapse Analytics, and I realised that this is an excellent opportunity for people to move to Apache Spark. Synapse Analytics...
2021-01-18
15 reads
Synapse Analytics and .NET for Apache Spark Example 1 - Group By
I have been playing around with the new Azure Synapse Analytics, and I realised that this is an excellent opportunity for people to move to Apache Spark. Synapse Analytics...
2021-01-18
27 reads
Synapse Analytics Spark Example 1 - Group By
I have been playing around with the new Azure Synapse Analytics, and I realised that this is an excellent opportunity for people to move to Apache Spark. Synapse Analytics...
2021-01-18
50 reads
Blogs
What Does It Mean to Make Data AI-Ready?
By James Serra
Making Data AI-Ready, Part 1 (This is the first article in a three-part series...
Using the Data API Builder–VS Live San Diego Resources
By Steve Jones
Thanks for attending my sessions. Resources below: Slides: Using Data API Builder GitHub repo: ...
Running a Local LLM On Your Laptop Resources
By Steve Jones
Thanks to everyone that attended my sessions at VS Live San Diego yesterday. It...
Forums
Having some performance issues with linked server query
When I run my query from DW, which uses a linked server, it times...
Implementing Type 4 Slowly Changing Dimensions in SQL Server
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
The Disabled Index
Comments posted to this topic are about the item The Disabled Index
Question of the Day
The Disabled Index
I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers