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SQLServerCentral Editorial

Of Hedgehogs and Database Design

  • Editorial

One of the finest songs of the sixties had the following lines … "Sitting one day by myself, And I'm thinking, "What could be wrong?" When this funny little Hedgehog comes running up to me, And it starts up to sing me this song. Oh, you know all the words, and you sung all the […]

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2020-08-22

426 reads

SQLServerCentral Editorial

What is Azure SQL Database Serverless?

  • Editorial

I remember when the first SQL databases were available on Azure. The size limits and missing features made them impractical for most uses at the time. Fast forward 10 years and you can you create a terabyte database and take advantage of configurations like Hyperscale, Elastic Pool, and Managed Instances. You get automatic high-availability and […]

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2020-06-13

731 reads

SQLServerCentral Editorial

Bad Managers

  • Editorial

I’m constantly hearing stories about terrible managers, and, of course, I’ve experienced quite a few myself. In fact, I can’t come up with many nice things to say about most managers when I look back over my career. (Luckily, my manager at Redgate is wonderful!) Early in my tech career, I was working at a […]

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2020-05-16

207 reads

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Question of the Day

ORDER BY alias

There is a table tmp_tab:

CREATE TABLE tmp_tab (
id int,
val int
);
INSERT INTO tmp_tab VALUES
(1, 1),
(2, NULL),
(3, 3),
(4, 4),
(5, 5);
You want to order the rows ids by the following expression:
    ISNULL(val, id) + 1
Which of the following queries produces the expected ordering and why? (Select all correct)

See possible answers