Efficient query performance in Amazon Redshift often comes down to how well you manage workload concurrency. Redshift's Workload Management (WLM) queues enable you to control how queries share resources,...
2026-06-05 (first published: 2026-05-18)
184 reads
Good documentation gets you started. Good books get you deep. After years of working with cloud data platforms, SQL engines, and machine learning pipelines, a handful of titles keep...
2026-05-22 (first published: 2026-05-13)
405 reads
Optimizing Azure SQL Database performance often begins with identifying the most resource-intensive queries. Understanding which queries consume the most DTU (Database Transaction Unit) helps prioritize tuning efforts and improve...
2026-05-11
65 reads
PlanTrace Now Supports PostgreSQL
The same plan analysis you know from Redshift, now for PostgreSQL — including EXPLAIN ANALYZE, buffer stats, and JSON format.
When...
2026-05-08
90 reads
PlanTrace: Stop Reading Redshift EXPLAIN Plans. Start Seeing Them
Introducing PlanTrace — a free, browser-based tool that turns raw execution plans into interactive graphs and actionable tuning insights.
plantrace.studyyourdata.com
PlanTrace...
2026-05-07
106 reads
When starting with AWS RDS Aurora for managing relational databases in the cloud, many data engineers face the challenge of leveraging its cutting-edge features while maintaining performance and reliability....
2026-05-22 (first published: 2026-05-04)
189 reads
Slow-running queries can degrade your Redshift cluster’s performance and lead to increased costs. Identifying the most expensive queries is crucial to optimize resource usage and improve overall system efficiency.
Step-by-Step...
2026-05-15 (first published: 2026-04-28)
104 reads
I recently started full time learning of Amazon Web Services (AWS). I found that AWS's Relational Database Service
(RDS) is really user-friendly. RDS simplifies many of the
complicated aspects of...
2024-05-06 (first published: 2024-04-20)
417 reads
In Part 1, we explain the basics and prerrequisites to work with Terraform.In Part 2, we created our first Azure resource.In Part 3, we deployed our fist solution (Azure...
2023-12-28 (first published: 2023-12-27)
68 reads
In Part 1, we explain the basics and prerrequisites to work with Terraform.In Part 2, we created our first Azure resource.On this post we will create an Azure SQL...
2023-09-20 (first published: 2023-08-28)
253 reads
By Steve Jones
Thanks to everyone that attended my sessions at VS Live San Diego yesterday. It...
By Steve Jones
I was creating a question on sp_readerrorlog and realized that this procedure is different...
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
Comments posted to this topic are about the item The Disabled Index
Comments posted to this topic are about the item Server-Level Table sizes
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