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

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Blog Post

How Azure RBAC Work

Azure RBAC is Role-based Access Control it is the gateway for any access (access management of Azure resources) and this service will help you to manage the access and...

2020-07-29

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Blogs

In-Person CISA Training – April 13-16, 2026

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I will be leading an in-person Certified Information Systems Auditor (CISA) exam prep class...

EightKB 2026

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EightKB is back again for 2026! The biggest online SQL Server internals conference is...

The FinOps Lifecycle: From Budgeting to Reporting

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Working in DevOps long enough teaches you two universal truths: That’s exactly why I...

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Forums

VS Code, Unresolved References.

By mjdemaris

Hi all, I just started using VS Code to work with DB projects.  I...

Fun with JSON II

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Fun with JSON II

Changing Data Types

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Changing Data Types

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Question of the Day

Fun with JSON II

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 t1.[key] AS row,
       t2.*
FROM OPENJSON(
     (
         SELECT t.* FROM #test_data AS t FOR JSON PATH
     )
             ) t1
    CROSS APPLY OPENJSON(t1.value) t2;

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