Performance tuning is a creative process which requires a lot of attention and manual work. SQL Server 2016's Query Store makes some of this work much easier, but what if you're using an earlier version? Fikrat Azizov shows how to automate assessing SQL Server query performance changes by using custom performance collection tools and reports.
2016-06-23
4,487 reads
Paul Randal continues his knee-jerk performance tuning series, focusing on ways to optimize performance when using temporary tables.
2016-04-25
6,231 reads
A script to get the user table query ratio and update radio,etc
2015-12-21 (first published: 2015-12-11)
1,795 reads
Identify the current statement and its line number within a running batch. Includes a link to the execution plan, if available.
2016-08-01 (first published: 2015-03-03)
5,455 reads
In this LIDNUG webinar, Mitchel Sellers walks through performance tuning best practices, and investigates how developers can use ANTS Performance Profiler to explore their application code and the SQL queries and execution plans behind it.
2014-12-05
7,720 reads
Learning how to tune a system is a bit of science and a bit of an art. Gail Shaw gives some guidelines on when you might want to tune and how to go about it so as not to unnecessarily undertake the effort.
2014-09-22
5,923 reads
Following script retrieves the queries currently executing on the server.
2016-02-29 (first published: 2014-09-04)
3,398 reads
2014-02-06
1,459 reads
This will name Ignite SQL hashes that have not been named yet, based on the object (or batch) they are within.
2014-02-05 (first published: 2014-01-25)
710 reads
Dynamic Management Views (DMVs) are a significant and valuable addition to the DBA's troubleshooting armory, laying bare previously unavailable information regarding the under-the-covers activity of your database sessions and transactions.
2020-11-18 (first published: 2013-08-21)
108,349 reads
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
Comments posted to this topic are about the item The Disabled Index
Comments posted to this topic are about the item Server-Level Table sizes
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