Technical Article

sp_lock2  = sp_lock +shows database and object name

sp_lock2 is similar to sp_lock, except that it displays the database name, object name and index name instead of the ids.  It accepts no parameters unlike the sp_lock procedure which can take an optional spid parameter. The basis for the main query which queries the system tables for lock info was taken from the sp_lock […]

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2002-06-06

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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