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T-SQL in SQL Server 2025: The UNISTR Function

I am not much for working in languages other than English. That's my native language and I know little about others. However, the last few years I find myself using emojis more and more in quick communications as they seem to add some fun to the interaction. And those interactions need to be stored in […]

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2025-12-05

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SQLServerCentral Article

T-SQL in SQL Server 2025: The PRODUCT Function

Earlier this year at SQL Saturday Austin 2025, Conor Cunningham gave a keynote that discussed the engineering efforts in the Austin office around SQL Server. One of the things he mentioned was PRODUCT(), which was written there and added to SQL Server 2025 to help with the GDP calculation for the US government. Yep, that's […]

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2025-11-28

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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