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SQLServerCentral Editorial

It's Time to Play

  • Editorial

Writing editorials every few weeks for a technical mailing list has been one of the more challenging responsibilities in my (nearly) two years with Redgate as an advocate working with Steve, Grant, and Louis. Each week, it’s interesting for me to see the mix of technical insights and everyday life stuff that each of us […]

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2024-08-31

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SQLServerCentral Editorial

Using Technology for Health

  • Editorial

I've been fairly healthy and fit for most of my life. While I've always had a few extra pounds, I do try to eat better than average and I exercise regularly. That didn't stop age and some pandemic laxity from catching up with me. My annual checkup last December had my doctor (and me) slightly […]

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2022-03-05

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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