Editorials

SQLServerCentral Editorial

Do presenting and writing really matter?

I’m sure you’ve heard the adage that people are more afraid of public speaking than they are of death. On the other hand, some folks can’t get enough public speaking and look forward to opportunities to get up in front of a group and talk. Writing is not so scary since it’s a solitary activity, […]

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2021-10-30

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SQLServerCentral Editorial

Learning Is Challenging, So, Forgive Yourself

In addition to trying to get better at SQL Server, Redgate Software, and all the various aspects of my job, I'm also trying to get better at this whole human interaction thing AND I'm working on trying to learn PostgreSQL much more deeply. Whew! Yeah, may not seem like a whole lot, but I assure […]

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2021-10-16

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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