James Serra's Blog

Blog Post

Microsoft Fabric shortcuts

I talked about Microsoft Fabric shortcuts in my blog post Microsoft Fabric – the great unifier (where I have updated the picture with the newest supported sources) and wanted...

2024-05-15 (first published: )

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Blog Post

Data Mesh Topologies

As a follow up to my blog Common Data Mesh exceptions, I wanted to discuss various types of data mesh topologies I am seeing being built. I put them...

2024-02-19 (first published: )

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Blog Post

Common Data Mesh exceptions

When it comes to data meshes that have been constructed or are currently under development, I have not observed any instances where the four core data mesh principles have...

2024-01-22 (first published: )

233 reads

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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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)

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