Damian is Microsoft MVP and Certified Trainer with 20 years of experience. Now trying to share the passion and knowledge among others. He runs the blog with his daughter as she is really passionate about technology

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Person Reading a Book

Weekly reading 10#

New week has started. 1/2 of the Coding Family Team has exams at school today. We were all busy last weeks…. But now it ends! And this must be...

2019-04-08

28 reads

Person holding Coffee

Weekly reading #9

Good morning, today is 1st April. Maybe it is a good time to say that for example SQL Server was acquired by its main competitor on the market? No,...

2019-03-31

79 reads

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Blogs

What DevOps Look Like in Microsoft Fabric

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Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...

T-SQL Tuesday #192: What career risks have you taken?

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I’m honored to be hosting T-SQL Tuesday — edition #192. For those who may...

AI: Blog a Day – Day 3: LLM Models – Open Source vs Closed Source

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Continuing from Day 2 , we learned introduction on Generative AI and Agentic AI,...

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Foreign Keys - Foes or Friend?

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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;

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