Andreas Wolter (www.andreas-wolter.com) has worked for over a decade as trainer (MCT), consultant and architect for SQL Server systems. He is one of less than a dozen experts worldwide, who have been certified as Microsoft Certified Master (MCM) on SQL Server 2008 and additionally Microsoft Certified Solutions Master Data Platform (MCSM) on SQL Server 2012.



Being an active member of the PASS he is also a speaker at various international conferences since several years.



With his Germany-based company, Sarpedon Quality Lab (www.SarpedonQualityLab.com), he provides development and optimization of database systems, with a focus on scalable, performing and secure deployments across Europe and worldwide. You can also follow him at Twitter at twitter.com/AndreasWolter.

  • Interests: Business Intelligence & Datawarehousing Performance Tuning Security

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Blogs

AI: Blog a Day – Day 5: Notebooks, Hugging face models and Fine Tuning

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AI: Blog a Day – Day 4: Transformers – Encoder, Decoder, and Attention

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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;

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