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SQL Saturday Boston 2023 Recap

First Things First Thank you to everyone who attended my session “Answering the Automator’s Call with Automation.” My slide deck and demo code are now available on my Github.....

2023-10-16 (first published: )

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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