Editorials

SQLServerCentral Editorial

Dropping a Row

How important is it that your server record all changes to every row? Probably very important and that is one of the foundations on which RDBMS platforms are built. Steve Jones talks about this being a difference with some NoSQL systems, and why it might not be acceptable to most businesses.

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2011-05-10

203 reads

SQLServerCentral Editorial

Tiered Storage

Storage costs are constantly rising, especially for databases as we gather more and more data. However not all of our data is necessarily the same priority or requires the same hardware. Steve Jones talks about the benefits you might get if you can tier your storage.

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2011-05-09

226 reads

SQLServerCentral Editorial

The Titanic Cloud

The outage at Amazon's Web Services recently affected a lot of different companies. However not everyone was affected. The reach of the cloud and the competition for attention means that while we have to learn to expect failures, they are not necessarily evenly distributed.

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2011-05-05

189 reads

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Rollback vs. Roll Forward

By Steve Jones - SSC Editor

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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