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SQLServerCentral Editorial

Moving on but not far

During my technical career, I’ve changed companies several times. I even worked as an independent contractor for three years. One thing I have never done before was switch departments and roles within one company. That’s about to change in a couple of weeks as I move from Simple Talk Editor and DevOps Advocate in Marketing […]

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2022-05-21

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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