Editorials

SQLServerCentral Editorial

Taking time off

Time is a precious commodity, and so much of our time is dedicated to working. IT professionals often have jobs with good benefits, including generous paid time off. It’s important to get away from work to relax and recharge, but, sometimes, it’s difficult to take those days that belong to us. Even when we do […]

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2021-07-17

110 reads

SQLServerCentral Editorial

How Do You Decide to Rollback?

One of the constant questions I get from Redgate customers is about rolling back database changes. We build software to help you deploy changes, but what about rollbacks? I think I've heard this in almost every conversation I've had on this topic in the last 5 years. It's one reason that Flyway has undo, though […]

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2021-07-07

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SQLServerCentral Editorial

The Second Half of 2021

July is starting, and with it we move to the second half of 2021, or H2 2021 for those of you that like the planning shorthand on roadmaps and project manager boards. The first half of 2021 has felt like a big of progress in the world, as we try to recover from the pandemic […]

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2021-07-05

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SQLServerCentral Editorial

Happy Birthday USA!

This is the Fourth of July weekend here in the US when we celebrate the birth of the country based on the publication of the Declaration of Independence. For those who don't know, this celebration mostly consists of fireworks and outdoor cookouts. However, at our house we've always tried to do a little bit more […]

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2021-07-03

135 reads

SQLServerCentral Editorial

Learning Intentionally with a List

We're coming up on the middle of the year, and I wonder if you are improving your career this year? Did you make plans and are you sticking to them? I've been tracking progress on my goals, and so far mediocre progress. It's tough to learn, but even tougher to learn when you don't have […]

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2021-07-02

142 reads

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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