In a previous article I showed how to look at what query plans are in SQL Server's memory. In this article I'll look at how they got there and how and when they get reused. This is commonly called compiling a query plan. More specifically I'll look at how and when SQL Server can parameterize dynamic SQL
2007-08-14
4,567 reads
SQL Server memory is primarily used to store data (buffer) and query plans (procedure cache). In this article I'll show how much memory is allocated to the procedure cache (RAM). I'll explain how to determine what plans are in the cache and how often they're used.
2007-08-10
3,461 reads
If you are using SSMS and SQL Server 2005 SP2, You've probably tried out the database reports that are available in the Performance Dashboard, and decided how useful they are, but did you know that you can create your own dashboard reports?
2007-08-07
2,541 reads
SQL Server memory is primarily used to store data (buffer) and query plans (cache). In this article I'll show how much memory is allocated to the data buffer (or RAM). I'll explain how to determine what tables and indexes are in the buffer memory of your server.
2007-08-03
4,543 reads
The SQL Server 2005 Performance Dashboard is a new add-on to SQL Server 2005 that became available shortly after the release of Service Pack 2 for SQL Server 2005.
2008-05-20 (first published: 2007-06-06)
7,979 reads
Full scan statistics update can be slow and expensive on a large system, and a single update statistics job for a whole database can easily exceed an overnight maintenance window. This article looks at jobs that could update statistics on the system in parallel.
2007-05-31
2,046 reads
Is it better to use NOT IN() or <> in a T-SQL query? Ken Johnson had the question put to him and decided to investigate them both. Read about how these two functions perform.
2008-03-12 (first published: 2007-05-29)
22,388 reads
How many times have you wished that your queries performed better? Performance Tuning is a bit of an art, but learning about new techniques and which things work help grow your knowledge. Jacob Sebastian brings us the first part of a series on writing better performing queries.
2008-03-31 (first published: 2007-05-22)
30,075 reads
How many times have you had a stored procedure run quicker in Query Analyzer than it does in the application? Mike Dillon tracked down one possible cause in this article.
2008-02-13 (first published: 2007-05-07)
16,674 reads
2007-04-30
2,000 reads
By Steve Jones
Thanks to everyone that attended my sessions at VS Live San Diego yesterday. It...
By Steve Jones
I was creating a question on sp_readerrorlog and realized that this procedure is different...
By SQLPals
Why sys.fn_dblog Is Undocumented And Why It's Still There Why sys.fn_dblog...
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