For most DBAs, normalization is an understood concept, a bread and butter bit of knowledge. However, it is not at all unusual to review a database design by a development group for an OLTP (OnLine Transaction Processing) environment and find that the schema chosen is anything but properly normalized. This article by Brian Kelley will give you the core knowledge to data model.
2003-01-13
18,925 reads
Get a sneak peak of some of the sections from Start to Finish Guide to SQL Server Performance Monitor. Find out what counters to watch and what their thresholds are.
2002-08-06
21,325 reads
SQL Server DBAs are often curious about the inner-workings of SQL Server. Indeed, it can save your job during disasters to know what's going on inside SQL Server. This article shows you how to use some of the SQL Server internal views to view some meta data about your servers.
2002-01-09
17,626 reads
This Script reports locking on a particular database either to the console or to a database table. It also allows filtering based on a minimum locking level (say Page or Table and higher). Included is the CREATE TABLE statement to build the reporting table. This table can reside in any database but needs to be […]
2002-01-06
1,071 reads
We all know what the ideal application design environment is for building a database back-end: an experienced DBA takes inputs from end users and developers and creates the database design in order to support the application being developed. But in reality, we don't get the opportunity to do application design like this very often. This article covers how to quickly find and fix problems in a design.
2001-08-20
8,246 reads
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
By Arun Sirpal
“What exactly did it do on my server?” is the first question a DBA...
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
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Comments posted to this topic are about the item 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