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Sample Chapter from Murach's SQL Server 2008 for Developers

Chapter 3 from Murach’s SQL Server 2008 for Developers shows you how to retrieve data from a database table. In the process, you’ll master the basic skills that you’ll use in coding almost any SELECT statement, no matter how complex. At that point, you’ll be ready to learn how to code joins, summary queries, subqueries, and action queries, and then move on to working with server-side features like cursors and stored procedures.

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2009-01-28

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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