Aggregating Correlated Sub-Queries
Every now and then you may attempt to calculate an aggregate function -- such as SUM() -- on a correlated subquery, only to encounter the following error:
Output Parameters
Regular columnist Robert Marda writes about the basics of using output parameters. If you're not using output params we hope this article will get you started - they are a great way to return less data to the client, perfect if you need only a few values and not a recordset/resultset.
What's Fair
If you read my recent editorial called Get Some Help, you realize that I didn't get any World Series tickets from the sale on the Colorado Rockie's web site. Not to berate the subject, but some friends and I had an interesting debate on how the situation was handled and what could be done differently.
Data is at the Heart of Enterprise-Wide BI and DW, Part 3
My online series of articles has been focused on the need for businesses to "get serious" about their approach to developing an enterprise business intelligence (BI) and data warehousing (DW) capability. When pursuing this capability it is important to adopt a holistic view, followed by disciplined investment and execution.
Microsoft Windows PowerShell and SQL Server 2005 SMO – Part 9
Learn how to use PowerShell in conjunction with SMO to Generate an SQL Server Script.
Mini-Me
Will the next version of Windows be a "Mini-Me" version of Vista? Who knows, and it's too early to tell, but apparently there's a mini-kernel version of Windows 7, the one after Vista, which fits into 25MB on disk. That's a touch lower than the 4GB that Vista takes up. Granted it's not a full […]
Views for Abstraction
Views are one of the more basic constructs in SQL Server, but often it seems that developers are not sure when to use them. SQL Server expert DBA and trainer Andy Warren brings us a look at views as an abstraction layer in your database.
Celko on SQL: Natural, Artificial and Surrogate Keys Explained
SQL programming guru Joe Celko offers a classification scheme and advice on using the right keys.
SQL Server 2005 Express Edition - Part 8 - XCopy Deployment
Part 8 of our series provides an overview of User Instance model (also known as “Run As Normal User” or simply RANU) and automatic database connectivity, which serve as two primary enablers for XCopy deployment, facilitating distribution of single-user databases.
Date and Time in SQL Server 2008
SQL Server 2008 is well on its way to being complete and released with the release of the second CTP recently. There aren't a tremendous number of changes, but one of the more interesting ones is the changes to date and time handling in this new platform. The time and date datatypes have been separated and longtime SQL Server author Vincent Rainardi brings us a short look at how there can be used.
Blogs
SQL Server Security: Always Encryption
By Vinay Thakur
As discussed introduction of Always Encryption blog and initial Encryption at rest as TDE...
SQL Server Security – TDE Encryption
By Vinay Thakur
Transparent Data Encryption(TDE): TDE was initially introduced in SQL Server 2008 Enterprise Edition; this...
A Las Vegas Break
By Steve Jones
Only a little break for me. I’m actually heading to Las Vegas today for ...
Forums
The day-to-day pressures of a DBA team, and how we can work smarter with automation and AI
Comments posted to this topic are about the item The day-to-day pressures of a...
The Problem Isn't Always Your Query or Schema... Sometimes It's Hidden Assumptions
Comments posted to this topic are about the item The Problem Isn't Always Your...
Identity Defaults
Comments posted to this topic are about the item Identity Defaults
Question of the Day
Identity Defaults
What happens when I run this code?
CREATE TABLE dbo.IdentityTest
(
id int IDENTITY(10) PRIMARY KEY,
somevalue VARCHAR(20)
)
GO
See possible answers