This article describes a utility that allows you to inspect cached plans and extract information that can be useful in improving the performance of your SQL.
2012-06-22 (first published: 2009-06-11)
47,544 reads
This article describes different ways of improving the performance of SQL Server queries, with a focus on index optimization.
2009-05-08
5,250 reads
In the first part of this series of articles, Gail showed how to find the procedures that contributed most to performance problems. In this final part, she shows how to use query statistics to pinpoint the queries that are causing the biggest problems, and then use the query execution plans to find out which operations are the root cause.
2009-05-04
4,867 reads
I was a running a routine query using an equal operator on the only column of the primary key for a table and I noticed that the performance was terrible. These queries should have been flying because all I was doing was retrieving one row of data which should have been doing an index seek. When I looked at the query plan it was doing a scan instead. This tip shows you what I found and how to resolve the problem.
2009-04-27
3,197 reads
To tackle performance problems with applications, first use SQL Profiler to find the queries that constitute a typical workload: From the trace, spot the queries or stored procedures that are having the most impact. Then it's down to examining the execution plans and query statistics. You then see what effects you've had and maybe repeat the process. Gail explains all, in a two-part article.
2009-03-23
5,352 reads
2008-12-23
3,798 reads
I can run the Database Tuning Advisor or examine the query plans, but is there any easier way to determine which indexes may be needed?
2008-12-08
2,297 reads
2008-11-19
3,154 reads
We are required to report from our SQL Server 2005 database. There are five or six tables regularly used for holding the reporting data, but these tables have five-to-seven million rows of data in them already. We need to use these tables consistently and our performance involving reporting is struggling. Do you have any tips to help improve it?
2008-10-22
4,961 reads
Solve your SQL Server error, problem or installation failure with this advice. Learn how to fix SQL performance errors and suspect data recovery problems.
2008-10-20
3,381 reads
By Vinay Thakur
Continuing from Day 3 where we covered LLM models open/closed and their parameters, Today...
By Steve Jones
One of the nice things about Flyway Desktop is that it helps you manage...
By HeyMo0sh
Microsoft Fabric (not to be confused with the more general term “fabric” in DevOps)...
I'm fairly certain I know the answer to this from digging into it yesterday,...
Hi Team, I am trying to refresh the Azure Synapse Dedicated pool from production...
hi everyone I am not sure how to write the query that will produce...
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT *
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t; See possible answers