Editorials

SQLServerCentral Editorial

Knowing When to Respond

I ran into this quote on the Microsoft Learn site, which I thought was a great way to think about how to administer a system: "Without a baseline, every issue encountered could be considered normal and therefore not require any additional intervention." When I've had users file tickets or complain about things not working well, […]

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2022-01-24

144 reads

SQLServerCentral Editorial

It Isn't Worth Automating

Every year I'm responsible for a portion of the Database Weekly newsletters. I used to do half, but right now Kathi, Grant, and I are on a rotation. Our boss puts out a schedule each year, which tells me the weeks for which I am responsible. Each January I then set up a recurring appointment […]

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2022-01-17

192 reads

SQLServerCentral Editorial

T-SQL Requires the Right Approach

Some of the most problematic T-SQL code I’ve seen over the years originated because the developer approached T-SQL with techniques more suitable for developing applications. I often saw these issues in my consulting days and always took the opportunity to teach the customer instead of only fixing the problems. One reason is that SQL is […]

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2022-01-15

234 reads

Blogs

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

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T-SQL Snapshot Backups on Availability Group Secondary Replicas

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The Book of Redgate: Hours

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I have said and written this many times: Redgate Software is the type of...

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Forums

ORDER BY alias

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Comments posted to this topic are about the item ORDER BY alias

Optional Parameter Plan Optimization in SQL Server 2025: Fixing the Kitchen-Sink Search Procedure

By vgupta

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AI Experience Gap that we keep talking about

By Pat Wright

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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