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SQLServerCentral Editorial

Remembering Phil Factor

  • Editorial

One of the most prolific and popular authors at Simple Talk has been Phil Factor. He wrote many pieces on all aspects of database work and has probably written more articles on the Redgate Product Learning site than anyone else. He has entertained, informed, and inspired many database professionals in his many years as an […]

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2025-09-19

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SQLServerCentral Editorial

Gathering Data Through Life

  • Editorial

Every once in a while, I find a list of places posted on the Internet with a "how many have you visited?" question attached. This might be US states, countries, cities, or even attractions. I love traveling with my wife and having new experiences, and as we've gotten older, we value the experiences more than […]

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2022-04-29

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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;

See possible answers