Mustafa Elmasry

Mustafa Elmasry is Microsoft Principle database consultant working as DBA for more than +10 Years I have a very good high level of knowledge about Database Migration, Consolidation, Performance Tuning, Automation Using T-SQL, and PowerShell and so many other tasks I am working as a freelancer and I do many of projects in multiple customers (Governmental and Private Sector ) here in KSA as of now, I am working in Banking sector AS Database Consultant Engineer managing the core banking system that is hosted in SQL Server Database 8 TB and other 200 SQL Server Clusters
I am Microsoft certified 2008 and 2016 in SQL Server (2x MCTS, 2x MCTIP, MCSA, MCSE) and I am Microsoft Certified Trainer (MCT) also I am azure Certified (AZ-900, AZ-103) also I was awarded by Microsoft Azure Heroes 3 times as (Azure Content hero, Azure Community hero and Azure Mentor) for more information about my experiences and my activity for spreading the knowledge please check my web page https://mostafaelmasry.com/about-me/
  • Tagline: DB Cloud Tech
  • Interests: SQL Server , Azure , Data Engineer
  • Blog: https://mostafaelmasry.com/
  • Jobs: Independent SQL Server Consultant
  • Skills: SQL Server , Azure

Blogs

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,...

How to Parameterize Fabric Linked Services in Azure Data Factory for Azure Devops Deployment

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

Rollback vs. Roll Forward

By Steve Jones - SSC Editor

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Foreign Keys - Foes or Friend?

By utsav

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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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