Editorials

SQLServerCentral Editorial

AI Ethics

I found this article to be an interesting look at how we might add ethics to AI systems in one area. As the article points out, "... today there is no broadly accepted AI ethics framework, or means to enforce it. Clearly, ethical AI is a broad topic ...". Glad someone is thinking, or many […]

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2022-07-25

136 reads

SQLServerCentral Editorial

Time To Recharge

Redgate is a great place to work for a lot of reasons. One of those has come up for me. It's time for my sabbatical. Every five years we get six weeks paid leave. Mine starts Monday. I'll still be clearing out my email (the thought of six weeks worth gives me horrors), and I'll […]

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2022-07-16

183 reads

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ORDER BY alias

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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