Brent continues his DBA Training Plan: Whenever your queries need to wait on something – storage, locks, memory, whatever – SQL Server tracks what it’s waiting on, and for how long. It’s like you’re seeing INSIDE the server, with all kinds of possible debug points being tracked. All you have to do is ask SQL Server, “What have you been waiting on?”. Here Brent shows you how.
2019-09-27
This week Steve is wondering if you know how to use waits and queues for troubleshooting.
2019-08-23
679 reads
2019-06-24
802 reads
2019-06-10
1,107 reads
In which you ask your assistant to fetch your coffee, and time them.
2018-10-19
3,120 reads
Paul Randal adds another chapter to his thorough series on knee-jerk wait statistics, focusing on the often-misunderstood PAGELATCH_XX waits.
2015-11-05
5,574 reads
This beginner's guide to Wait Stats by Jonathan Kehayias and Erin Stellato is a free PDF download brought to you by SQL Skills and Simple-Talk.
2014-04-18
5,338 reads
By James Serra
Making Data AI-Ready, Part 1 (This is the first article in a three-part series...
By Steve Jones
Thanks for attending my sessions. Resources below: Slides: Using Data API Builder GitHub repo: ...
By Steve Jones
Thanks to everyone that attended my sessions at VS Live San Diego yesterday. It...
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I run this code on SQL Server 2022.
CREATE TABLE Drink
(
drinkid INT NOT NULL
CONSTRAINT DrinkPK PRIMARY KEY CLUSTERED,
drinkname VARCHAR(20),
rating NUMERIC(2, 1)
)
GO
INSERT INTO Drink
(
drinkid,
drinkname,
rating
)
VALUES
(1, 'Margarita', 4.5),
(2, 'Mojito', 4.3),
(3, 'Old Fashioned', 4.7),
(4, 'Martini', 4.4),
(5, 'Cosmopolitan', 4.2)
GO
ALTER INDEX drinkpk ON dbo.drink DISABLE
GO
SELECT * FROM dbo.Drink
GO
What is the result? See possible answers