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Managing Stress

This has been a stressful time for many people around the world. Working remotely, limited movement, pressure to continue to perform while perhaps being worried about continued employment, these and many more factors have made the last few months hard for many people around the world. I interviewed Troy Hunt earlier this week for Redgate […]

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2020-07-04

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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