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SQLServerCentral Article

Sequential Numbering

  • Article

Needing to number rows with a sequential id is a pretty common request. Sometimes it's because the user hasn't made the transition to 'set based' thinking, sometimes it really is a valid request (more or less!). Greg provides several different techniques to help you achieve sequential numbering.

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2003-12-05

11,080 reads

SQLServerCentral Article

Deleting Child Data Based Upon Criteria in the Parent Table

  • Article

New Author! Thom's first article discusses the difficulties you encounter when your database doesn't support cascading deletes (or you've opted not to use it) and you need to delete data in a child table based upon a value in the parent table. Not exactly your run of the mill delete query. Take a look and please rate/comment the article!

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2003-06-24

5,284 reads

SQLServerCentral Article

Querying XML files using SQL 2000

  • Article

One of the many useful features gained by SQL Server 2000 is the ability to handle XML documents. This means that any computer language capable of opening an XML files and calling SQL Server stored procedures can make use of this new ability. This article by David Poole shows you how!

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2002-10-11

12,023 reads

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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