Microsoft Fabric (Azure Synapse, Data Engineering, etc.)

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Microsoft Fabric and MQTT for Real-Time IoT Data Ingestion and Analytics

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Microsoft Fabric is a unified platform for data integration, data engineering, real-time intelligence, and advanced analytics. Fabric is known for providing an integrated way of working with your data, connecting to many diverse types of sources and across the data landscape. How do we get started ingesting and analyzing real-time data streamed over the MQTT protocol?

2026-02-23

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Fun with JSON II

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Changing Data Types

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Answering Questions On Dropped Columns

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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;

See possible answers