Getting Help Online
I spend a lot of time in the forums on various web sites, trying to assist people with getting help online. It’s shocking how hard they make it. Let’s...
2022-11-02 (first published: 2022-10-24)
151 reads
The Scary DBA
Monitor Cardinality Feedback in SQL Server 2022
It’s possible for you to see new technology at work if you use Extended Events to monitor cardinality feedback. To put it simply, cardinality, the number of rows being...
2022-10-26 (first published: 2022-10-17)
243 reads
Query Store at PASS Data Community Summit
While Query Store has been out for quite some time now, released in 2016, there’s still quite a lot of missing understanding of what Query Store can do for...
2022-10-11
13 reads
Check Every Metric
Recently, a person asked about the costs differences in an execution plan, referencing them as if they were performance measures. The key to understanding performance is to check every...
2022-10-10
22 reads
PGSQL Phriday #001: Two Truths and a Lie
As a part of my own journey of learning within PostgreSQL, I’ve decided that I’m going to take part in PGSQL Phriday as often as I can, just as...
2022-10-21 (first published: 2022-10-07)
191 reads
DevOps From Redgate
In a few weeks at the PASS Data Community Summit, I’ll be joining several other Redgaters to put on an all-day precon where we take you on a database...
2022-10-14 (first published: 2022-10-04)
120 reads
Function Vs. Performance
Recently I was looking through DBA.StackExchange when I saw a pretty simple question that I decided to answer. I went off, set up a test database and some test...
2022-10-03
31 reads
Why You Need Presentation Skills
And no, the answer is not because you want to be a Microsoft MVP. Multiple surveys have been published over the decades that list “fear of public speaking” as...
2022-09-29
29 reads
Query Tuning At PASS Data Community Summit
The all new, in-person, PASS Data Community Summit is in just a few weeks. Since I’m shortly going to be publishing a 100% rewritten book on query tuning, I...
2022-10-12 (first published: 2022-09-28)
213 reads
Extended Events for Anything but Query Tuning: bulk_insert_usage
Wouldn’t it be great to be able to directly monitor specific behaviors within SQL Server, like, oh, I don’t know, knowing exactly when, and how, someone is using BULK...
2022-09-19
49 reads
Blogs
Why sys.fn_dblog Is Undocumented And Why It's Still There
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
T-SQL Tuesday #202 SQL Server Outage You’ll Never Forget: A Roundup
When I put together the invitation for T-SQL Tuesday #202, I wasn't sure what...
A Last Minute Trip to the EU
By Steve Jones
My life has some crazy travel stretches for sure. Between speaking, office visits, customer...
Forums
Implementing Type 4 Slowly Changing Dimensions in SQL Server
Comments posted to this topic are about the item Implementing Type 4 Slowly Changing...
The Disabled Index
Comments posted to this topic are about the item The Disabled Index
Server-Level Table sizes
Comments posted to this topic are about the item Server-Level Table sizes
Question of the Day
The Disabled Index
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