Chris McGowan

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Blogs

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...

T-SQL Snapshot Backups on Availability Group Secondary Replicas

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One of my favourite features of SQL Server 2022 was the T-SQL Snapshot Backups....

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

AI Experience Gap that we keep talking about

By Pat Wright

Comments posted to this topic are about the item AI Experience Gap that we...

Squared Values

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Squared Values

I Don't Want To Do XX

By Steve Jones - SSC Editor

Comments posted to this topic are about the item I Don't Want To Do...

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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)

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