Is Data Modeling Common?
Today Steve tasks data modeling and wonders how many people still build and maintain models.
2025-11-24
124 reads
Database modelling
Being Mindful of Design Time
Do you take the time to model and design your database? Steve thinks this is important, even while trying to make changes quicker to adapt to changing requirements.
2025-11-14
95 reads
Dimensional Modeling Case Study Part 3 - Dynamic Days Dimension
In this next installment of the date dimension series, learn how to create a table that supports different types of banding.
2025-06-13
2,062 reads
Department of Redundancy Department
Ever wonder all the reasons that we use databases instead of file systems? While we don’t think of it too much anymore, the first reason that databases came into existence was to remove redundancies.
2024-04-12
Dimensional Modeling Case Study Part 2 - Days Dimension
Learn how you can model days in a dimension that might need to be aggregated in different ways for your data warehouse operations.
2024-02-07
2,219 reads
Dimensional Modelling Case Study Part 1 - Age Group
Learn how you can handle dimensional modeling in a data warehouse when your data uses different categorization for ages.
2024-01-12
2,926 reads
Having Data Modeling Standards
Today Steve talks about data modeling and how standards can transfer knowledge between developers.
2023-11-22
464 reads
Cone of Uncertainty
Our design and modeling is often done with some level of uncertainty. Steve has a few guidelines today.
2022-10-26
177 reads
2020-09-15
193 reads
Database Modeling - Relationships
A proper relationship between two people, places or things improves the communication between them. In every real-world based application, this logic holds and a database is no different. This article discusses the different relationship types possible between database objects. The designing of these relationships between them is called modeling, and the three types of relationships […]
2020-08-31
7,549 reads
Blogs
T-SQL Tuesday #192: What career risks have you taken?
By James Serra
I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...
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Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...
How to Parameterize Fabric Linked Services in Azure Data Factory for Azure Devops Deployment
Quite the title, so let me set the stage first. You have an Azure...
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how to write this query?
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Rollback vs. Roll Forward
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Question of the Day
Fun with JSON I
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers