2005-05-26
1,949 reads
Performance Tuning
2005-05-24
2,318 reads
Detecting and Resolving Stalled and Stuck I/O Issues in SQL Server 200
Guest columnist Robert Dorr explores how the reporting tool in SQL Server 2000 Service Pack 4 significantly reduces the time it takes to identify and determine the underlying causes of stalled and stuck I/O operations.
2005-05-13
2,764 reads
Obtaining Query Execution Plans Through SQL Profiler Traces
Did you know that you can obtain the execution plans for your SQL Server 2000 queries using Profiler? It is an interesting concept, especially when you need to troubleshoot the queries on a system that you did not develop and cannot obtain source code for. SQL Server guru andy Dyess brings us the technique you can use to find those queries and execution plans.
2005-04-18
16,802 reads
Performance Tips Part 2
SQL Server 2000 is a self tuning, self balancing application that performs wonderfully under a wide variety of loads and conditions with a minimal of administrative tuning. However there are some things that you can do when building T-SQL code and working with SQL Server to maximize performance. Leo Peysakhovich brings us part two of his series looking at some different scenarios and how you can structure your code for better performance.
2005-03-17
11,514 reads
Hits and Misses
Squeezing every last bit of performance from SQL Server is an art and one that can be critical to your success as a DBA. New author Mike Metcalf has brought us a little nugget he learned at Devcon recently about procedure cache hits and misses.
2005-03-10
9,781 reads
A Case Study in Performance Tuning
SQL Server does a wonderful job of tuning itself, selecting the optimum query plans and in general performing very well under a variety of conditions. That does not mean the a good DBA cannot add value by setting up the system and ensuring the optimizer receives the information that it needs. New author Gordon Pollokoff brings us a short case study from a project he as recently involved in where a new application required a bit of tuning.
2005-01-24
12,597 reads
Indexes: An Overview and Maintenance for Performance
SQL Server for the most part will maintain itself, updating statistics, choosing optimal query plans, and requiring minimal maintenance to keep running. However to optain optimum performance, a real DBA needs to spend some time checking and tuning indexes, rebuilding them as fillfactors change. This new article from Desiree Harris looks at how you can perform some of these tasks to keep your server performing at the optimum level.
2004-12-30
12,796 reads
SQL Server: Compare Query Results - Part I
In the Database administration world, it is often necessary to run a query on the production box and then run the same query on the QA or UAT box and compare the results. In this article, I would like to introduce a method that takes advantage of an MS-DOS batch file and SQL Server utility, BCP.exe, to compare the query results executed on two different servers.
2004-12-24
1,828 reads
SQL Server: Blocking Problems
This article focuses on a common problem associated with conflicting locks: blocking. When blocking occurs, a single connection blocks all other connections from reading or modifying a particular piece of data. Learn here how to resolve these issues.
2004-09-30
3,955 reads
Blogs
Differences Between xp_readerrolog and sp_readerrorlog: #SQLNewBlogger
By Steve Jones
I was creating a question on sp_readerrorlog and realized that this procedure is different...
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...
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