SQL Server Performance Tuning Overview
In this blog article I will give an overview of performance tuning based on common situation that occur on small...
2012-07-01
478 reads
Blog Posts
Is SELECT Identity() … INTO Minimally Logged in Simple Recovery?
Is SELECT Identity() … INTO Minimally Logged in Simple Recovery?
Extreme Logging
I was having a discussion with Idera (@idera_software) dev lead Vicky...
2012-06-30
2,219 reads
Rebuild indexes based on fragmentation – sp_RebuildIndex
In my previous post here, I’ve discussed how we can detect fragmentation in SQL Server databases indexes using dynamic management...
2012-06-30
5,358 reads
Several useful T-SQL Function
1. Using the OVER clause with aggregate functions
The following sample is from BOL:
-------------------------------------
USE AdventureWorks2008R2;
GO
SELECT SalesOrderID, ProductID, OrderQty
,SUM(OrderQty) OVER(PARTITION BY...
2012-06-30
2,637 reads
Where to Buy a New Laptop
Let’s say that you are in the market to buy a new laptop or ultra book to replace that old...
2012-06-30
2,338 reads
SQL Server : Parameter Sniffing
Two days back one of my colleque came to me and started complaining about the performance of an Stored Procedure....
2012-06-29 (first published: 2012-06-25)
9,009 reads
Why I failed my goals
I have two goals that I have sought to achieve by mid-year of 2012. The deadline I set for myself...
2012-06-29
1,481 reads
Win A Free Registration to SQLskills Immersion Event 1
You have until July 6 to enter to win a free seat at the SQLskills Internals and Performance (IE1) training...
2012-06-29
1,717 reads
Don’t believe everything you read: Reconfigure flushes the plan cache
I’ve been doing a fair bit of research and investigation into the behavior of the plan cache recently. So I was concerned...
2012-06-28 (first published: 2012-06-25)
3,806 reads
Free Training: Performance Tuning with Free Tools!
This week I have two presentations on my schedule. I get to give my Performance Tuning for Pirates presentation twice...
2012-06-28
1,411 reads
Blogs
The flight recorder: Replaying what an AI agent did on my SQL Server
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Au Revoir for now
By Steve Jones
No, I’m not quitting or retiring. Just going on vacation, but I leave tonight...
Forums
Let's Talk Certifications
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The Hidden Security Risks of Role Combination in SSAS Tabular
Comments posted to this topic are about the item The Hidden Security Risks of...
The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers