As you advance in your skills as a Transact-SQL developer or SQL Server database administrator there will come a time when you need to override SQL Server's locking scheme and force a particular range of locks on a table. This article by Randy Dyess shows you how to optimize your queries using table hints.
2002-04-15
21,964 reads
In this article Randy Dyness shows you how to avoid temp tables whenever to maximize the performance of your queries.
2008-05-30 (first published: 2002-04-09)
70,027 reads
This article demonstrates the flexibility of static SQL when using the CASE function in a WHERE clause, SELECT clause, ORDER BY clause, GROUP BY clause, HAVING clause, and JOIN. This is done with five examples and includes sample code you can execute on your SQL Server.
2002-03-14
11,553 reads
This week Andy continues his series on how to reduce the number of round trips to the server by looking at some things you can easily add to your applications without a lot of rearchitecting.
2002-03-11
8,064 reads
Robert Marda continues his series on dynamic SQL and shows you how to rewrite some queries that you may think need dynamic SQL.
2002-03-07
13,132 reads
Architectural choices for data access affect performance, scalability, maintainability, and usability. This article focuses on the performance aspects of these choices by comparing relative performance of various data access techniques, including Microsoft® ADO.NET Command, DataReader, DataSet, and XML Reader in common application scenarios with a Microsoft SQL Server™ 2000 database.
2002-03-01
2,857 reads
One of the most overlooked areas in optimizing SQL Server and Transact-SQL is the recompilations of stored procedures. A database getting thousands of recompiles an hour will suffer in performance and show short term blocking that will affect the database users. This article by Randy Dyess shows you some of the ways you can avoid stored procedure recompiles.
2002-02-26
25,083 reads
A series of web presenatations from Microsoft about tuning SQL Server 2000.
2002-02-15
1,362 reads
Most DBAs and developers prefer not to use dynamic SQL for a number of reasons. There are some reasons to use this query type though. This article covers a few of those.
2002-02-12
14,876 reads
This article examines how index statistics are used in SQL Server 6.5
2002-02-08
230 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