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: )

5,608 reads

Blogs

Announcements from the Microsoft Fabric Community Conference — Barcelona 2026

By

Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...

Au Revoir for now

By

No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...

Goodbye, Microsoft

By

A few years ago I took a new job at Microsoft, working as a...

Read the latest Blogs

Forums

Let's Talk Certifications

By Grant Fritchey

Comments posted to this topic are about the item Let's Talk Certifications, which is...

Force join by longest possible choice

By pdanes

Title pretty much says it. I want to join to a table that has...

Building a SQL Server Fleet Audit That Leadership Actually Reads

By Mayank Sethi

Comments posted to this topic are about the item Building a SQL Server Fleet...

Visit the forum

Question of the Day

RegEx Functions IV

I have this data in a table in a SQL Server 2025 database:

EmailAddressID EmailAddress
7              dylan0@ADVENTURE-WORKS.COM
8              Diane1@ADVENTURE-WORKS.COM
If I run this query, which row(s) are returned?
SELECT top 10
 *
 FROM person.EmailAddress
 WHERE REGEXP_LIKE(EmailAddress, '^D', 'i')
 AND BusinessEntityID IN (7,8)

See possible answers