Editorials

SQLServerCentral Editorial

Let it go

I’ve been digging through the 18 years’ worth of articles, editorials, blogs, contests, interviews, promotions, and announcements over at Simple Talk. There are over 5000 posts, and many are quite outdated, especially those announcing beta versions of software or other time-sensitive content. Some articles haven’t seen the light of day for 10 years, yet some […]

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2021-02-06

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SQLServerCentral Editorial

Information Security, ITs Abused Step Child

Many of us grew up with one version of Cinderella or another. The step child that's horribly mistreated by the new parent is a scary story. In the Disney version, everything works out fine. However, if you read some of the original Grimm versions of the story (and there is more than one version), not […]

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2021-01-30

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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