Jacob Sebastian


The Art of SQL Server Filesteam eBook cover

The Art of SQL Server FILESTREAM by Jacob Sebastian and Sven Aelterman

FILESTREAM is implemented as an extension to the VARBINARY(MAX) data type and allows large object data to be stored in a special folder on the NTFS file system, while bringing that data under the transactional control of SQL Server. This book describes both the way it works and the implementation, administration and troubleshooting of it.

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2012-11-12

594 reads

The Art of XSD eBook Download

SQL Server XML Schemas

When information is exchanged in XML format, there needs to be an agreement between the sender and receiver about the structure and content of the XML document. An XSD (XML Schema Definition Language) Schema can be used to enforce this contract and validate the XML data being exchanged. Jacob Sebastian's book explains all.

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2009-02-10

5,329 reads

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Fun with JSON II

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Changing Data Types

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Answering Questions On Dropped Columns

By Cláudio Silva

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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