Editorials

SQLServerCentral Editorial

SQL Server vNext

We now know when the next version of SQL Server is coming. At Ignite last week, Microsoft announced SQL Server 2022, which comes nearly 3 years after the last version, SQL Server 2019. Apparently, the pandemic's effects include delays in product development as it's been nearly three years since SQL Server 2019. The new version […]

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2021-11-08

1,872 reads

SQLServerCentral Editorial

SQL Server 2022 and Learning

Microsoft announced the release of the next version of SQL Server, 2022. There's a bunch of new enhancements that we can all get excited about. I can't wait to test the "Parameter Sensitive Plan" optimization myself. We can look forward to seeing this stuff in action, and in detail, at the PASS Data Community Summit […]

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2021-11-06

433 reads

SQLServerCentral Editorial

Do We Care About Disks?

I ran across a tip on MSSQLTips from Joe Gavin recently, and it got me thinking about hardware and disks. For a lot of us, we deal with servers and storage, and not disks. While we might have a disk on a laptop or desktop, most of the production systems just attach to remote storage. […]

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2021-11-03

308 reads

Blogs

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...

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....

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Forums

ORDER BY alias

By aniap

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

Comments posted to this topic are about the item Optional Parameter Plan Optimization in...

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...

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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