Are your CPU-intensive queries running slowly? Check your VM type.
When you build a VM for SQL Server in Amazon EC2, Azure VMs, or Google Compute Engine, it’s all too easy to overlook the CPU speeds that you’re getting.
2019-05-03
Performance and Tuning
A Brief History of Deadlock and Modern Approach of Resolution
Deadlocks have been constant troublemakers for database professionals for years. They seem to show up from nowhere and keep on happening again and again. Pinal Dave provides some oversight.
2019-04-05
SQL Server Logical Reads – What do they really tell us?
SQL Server trace, the most common tool DBAs use to evaluate query performance, provides the ‘logical reads’ counter on which many DBAs rely for evaluating a query’s I/O performance. In this article, we will examine this counter’s true meaning and provide examples that prove it can sometimes be quite misleading
2019-01-15
3,258 reads
SQL Server Logical Reads – What do they really tell us?
In this article, we will examine this counter’s true meaning and provide examples that prove it can sometimes be quite misleading
2018-12-10
2,593 reads
Automatic Query Performance Tuning in SQL Server Database
In this article Anoop Kumar discusses Automatic Tuning, a new database feature that helps improve SQL Server query performance automatically.
2018-07-10
4,171 reads
SELECT INTO vs INSERT INTO on Columnstore
This article compares SELECT INTO and INSERT INTO under different scenarios, and the best approach preferred.
2016-08-05 (first published: 2015-06-09)
21,724 reads
Query Performance Tuning – A Methodical Approach
Learn how to approach performance tuning in this piece from SQL Server MCM and MVP, Gail Shaw.
2017-02-10 (first published: 2015-06-08)
16,802 reads
Blogs
Excellent article on securing msdb
By Brian Kelley
Fabiano Amorim has written an excellent article at Simple Talk on securing msdb. Here's...
T-SQL Tuesday #201: Temp Tables
By Steve Jones
This month we have a new host, which I am grateful for. So many...
When Do You Reach For A #temp Table?
I needed to do some research because there is more to #temp tables than...
Forums
OUTER APPLY Fundamentals: Part 2
Comments posted to this topic are about the item OUTER APPLY Fundamentals: Part 2
Building Great Software
Comments posted to this topic are about the item Building Great Software
The Range of Customers
Comments posted to this topic are about the item The Range of Customers
Question of the Day
The Range of Customers
I have this data in the OrderHeader table in a SQL Server 2025 database (ordered by CustomerID ASC):
orderid orderdate customerid complete 3 2025-05-10 00:00:00.0002 1 21 2024-01-10 00:00:00.0003 1 15 2023-10-28 00:00:00.0004 1 13 2025-03-08 00:00:00.0006 1 11 2024-04-02 00:00:00.0007 1If I run this query, how many rows are returned?
SELECT * from dbo.OrderHeader where customerid between 3 and '6'See possible answers