Scripts

Technical Article

SQL Server CPU Usage History Histogram

Returns a summary of CPU usage by SQL Server over the last 4 hours (default).

Using the sample values collected in the dm_os_ring_buffers dmv, this query will show CPU usage by the SQL Server process for the last for hours even if you have no other benchmarking activities in place on your server yet.

(16)

You rated this post out of 5. Change rating

2015-09-18 (first published: )

5,577 reads

Blogs

KDA: Echoes of Deception - Case 6

By

A cryptic message, a book cipher hidden in art provenance records, and a trail...

Capturing My Own Metrics: #SQLNewBlogger

By

A customer was trying to compare two tables and capture a state as a...

Red Flags in Your Query (T-SQL Tuesday #200)

By

When I'm looking at a query, I bet it's bad if I see... a...

Read the latest Blogs

Forums

BIT_COUNT II

By Steve Jones - SSC Editor

Comments posted to this topic are about the item BIT_COUNT II

I Can't Make You Learn

By Steve Jones - SSC Editor

Comments posted to this topic are about the item I Can't Make You Learn

Why Your SQL Permissions Disappeared

By deepeshdhake

Comments posted to this topic are about the item Why Your SQL Permissions Disappeared

Visit the forum

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;

See possible answers