Editorials

SQLServerCentral Editorial

The Challenges of Working Under Quarantine

It's been nearly two months since the Redgate Software offices closed. I am not normally in the office, but I did cancel a trip that I normally would have taken to touch base with a number of teams. That's a minor change for me, but a still a change. It's much less than the disruption that […]

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2020-05-28

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SQLServerCentral Editorial

Jumping Air Gaps

There are all sorts of viruses, worms, and malware out in the world, and some of us have had to deal with them at different points in our career. SQL Slammer was particularly memorable for me, but there were plenty of non data related virus issues I've had to work on at various employers. To […]

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2020-05-27

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SQLServerCentral Editorial

Enriching Your Life

As I was looking to build career goals for the new year, I think mostly about technical topics. That makes sense, given my focus and job, but I ran across an interesting thread on Hacker News that asked about skills to work on in 2020, and not necessarily technical ones. I did find it interesting […]

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2020-05-26

108 reads

SQLServerCentral Editorial

The Build Book of News

Every year Microsoft has held the Build conference for developers. I've been lucky enough to go a few times, and I was hoping to get the chance to attend again. With the pandemic, the entire event went virtual, and was held across 48 continuous hours. I was slightly disappointed as a few sessions I wanted […]

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2020-05-23

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Blogs

A Last Minute Trip to the EU

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My life has some crazy travel stretches for sure. Between speaking, office visits, customer...

Part 3 of 3: Tuning DiskANN — R, Alpha, L, Beam Width, Recall and Latency

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In Part 1, we saw how ‘Vamana’ represents vectors as nodes, connects them with...

Automated SQL Server Benchmarking with HammerDB and Docker: A Complete Testing Framework

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I’m excited to announce the release of a new open-source project that fully automates...

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Forums

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By bkdscbclw26

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Server-Level Table sizes

By Artur Sanin

Comments posted to this topic are about the item Server-Level Table sizes

ORDER BY alias

By aniap

Comments posted to this topic are about the item 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