Michael Coles


SQLServerCentral Article

Free Encryption

Free SQL Server 2000 Encryption for your data!!! Author Michael Coles has put together a tolljit and some XPs that you can use to encrypt your data with the Blowfish algorithm. It is hard to write good applications that encrpyt data and manage the keys and security. This will give you a great headstart on protecting your data.

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2018-10-10 (first published: )

78,933 reads

SQLServerCentral Article

The Hazards of IT

Are you taking care of yourself as an IT professional? We try to cover all aspects of your SQL Server career here, not just the technical stuff. Longtime SQL Server guru Michael Coles brings us some health tips in an interview with Dr. Jerry Sanders

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2008-05-23 (first published: )

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SQLServerCentral Article

Gotcha! SQL Aggregate Functions and NULL

Working with NULL functions can be tricky in T-SQL and SQL Server 2000. If you add in aggregates, you need to be sure you understand what the behavior will be or you might report incorrect values to a user. Michael Coles has written a new article that talks about how NULL affects your results.

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2008-04-04 (first published: )

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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