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SQL Window Functions Series: NTILE()

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Unlock the power of SQL's NTILE function with our latest deep-dive article. Learn to segment your data effectively into quantiles for more nuanced analysis, discover common pitfalls and their solutions, and optimize your queries for peak performance.

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2024-02-03 (first published: )

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SQLServerCentral Article

SQL Window Functions Series: LAG() and LEAD()

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Dive deep into the powerful SQL window functions, LAG() and LEAD(). Explore their intricacies, discover real-world examples, and avoid common pitfalls.

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2023-12-11

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2023-11-20 (first published: )

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BIT_COUNT II

By Steve Jones - SSC Editor

Comments posted to this topic are about the item BIT_COUNT II

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Question of the Day

BIT_COUNT II

In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:

UserID  UserPermissions
15
23
37
4       NULL
What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount
from dbo.UserPermission
where UserID = 4;

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