James Serra's Blog

Blog Post

Power BI Datamarts

As mentioned in my previous blog about the Microsoft Build event announcements, the biggest news was Power BI Datamarts. This is a new self-service capability included with Power BI...

2022-06-29 (first published: )

476 reads

Blog Post

Azure IoT Central

This is a short blog to give you a high-level overview on a product called Azure IoT Central. I saw this fairly new Azure product (GA Sept 2018) in...

2022-04-11 (first published: )

171 reads

Blog Post

Microsoft industry clouds

In talking with Microsoft customers, I have found that most are not aware that Microsoft has created industry clouds (see Microsoft Industry Clouds). So I wanted to use this...

2022-01-28 (first published: )

161 reads

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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Forums

Can an Azure App Service Managed Identity be used for SQL Login?

By jasona.work

I'm fairly certain I know the answer to this from digging into it yesterday,...

Azure Synapse database refresh

By Sreevathsa Mandli

Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...

how to write this query?

By water490

hi everyone I am not sure how to write the query that will produce...

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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