Identity Columns
When Nigel Rivett takes us on a tour of the apparently innocuous subject of Identity Columns in TSQL, even the seasoned programmer is due for one or two surprises.
2008-06-04
5,440 reads
Additional Articles
Intelligence on the Go: Mobile Delivery of BI
Many BI vendors now offer modules that let you deliver just about any report to smart phones, but as a major retailer, a health care provider and a major government agency have discovered, practical, tactical wins are the key to mobile success.
2008-06-03
2,362 reads
Tips for moving from local disk storage to SANs
Move SQL Server storage to storage area networks (SANs) with network redundancy and storage multipathing tips. Learn about iSCSI databases and SQL failover.
2008-06-03
4,514 reads
Optimistic Locking in SQL Server using the ROWVERSION Data Type
Using the default SQL Server READ COMMITTED isolation level, my application sometimes falls victim to the dreaded "lost update" condition where two of my users edit the same row for update but the user who submits his/her change last overwrites changes made by the other user. Is there a good way to check for this and prevent it?
2008-06-02
3,771 reads
Table-valued parameters – SQL Server 2008
In previous versions of SQL Server, it has not been possible to pass a table variable, as a parameter, to a stored procedure. Microsoft introduces table-valued parameters, along with other features, in SQL Server 2008. This article illustrates the function and usage of table-valued parameters.
2008-06-02
2,812 reads
Introduction to SQL Server 2005 Data Mining
Get an overview of typical data mining problems and the tools and models that are available in SQL Server 2005 for solving these problems.
2008-05-30
3,571 reads
Selecting the database recovery model to ensure proper backups
One of the first things that should be done when managing SQL Server is to setup an appropriate backup plan in order to minimize any data loss in the event of a failure. Along with setting up a backup plan there are certain database configurations that need to be setup to ensure you are able to backup databases correctly. In this tip we will look at the different recovery models that SQL Server offers and how to choose a recovery model for your database.
2008-05-30
4,151 reads
Dimension Attributes: Introduction and Overview, Part III
Join Business Intelligence Architect Bill Pearson as he continues his subseries surrounding components of the Analysis Services dimensional model. In this article we continue our introduction to dimension attributes, focusing upon the Misc group of attribute properties.
2008-05-29
1,215 reads
Trash Destination Adapter
The Trash Destination and this article came from early experiences of using SSIS and community feedback at the time. When developing a package it is very useful to have a destination adapter that does nothing but consume rows with no setup requirement. You often want run a package part way through development, or just add a path so you can set a Data Viewer.
2008-05-29
1,183 reads
Data Generator Source Adapter
This component needs little explanation. It generates random integer (DT_I4) and string (DT_WSTR) data and places them in the pipeline. You specify how many columns of each you would like and for any string columns you pass a fixed length value. You then need to specify how many rows in total you require to be generated.
2008-05-28
2,077 reads
Blogs
Identity Columns Can’t Be Updated: #SQLNewBlogger
By Steve Jones
I’m not sure I knew identity column values could not be updated. I ran...
Rolling Back a Broken Release
By Steve Jones
We had an interesting discussion about deployments in databases and how you go forward...
A bespoke reporting solution doesn’t have to cost the earth
By ChrisJenkins
You could be tolerating limited reporting because there isn’t an off the shelf solution...
Forums
Can someone please explain what happens?
I have mentioned this several times over several years. Can someone please help me...
SELECT COUNT(DISTINCT) returns null when nothing is found instead of 0
SELECT COUNT(DISTINCT Component) AS Found FROM tblComponents WHERE(Component NOT LIKE '%[a-z]%') AND(LTRIM(RTRIM(Component)) = 'GM13622')...
Remotely Engineer Fabric Lakehouse objects: The Fabric Modern Data Platform
Comments posted to this topic are about the item Remotely Engineer Fabric Lakehouse objects:...
Question of the Day
Creating JSON III
In a SQL Server 2025 table, called Beer, I have this data:
BeerIDBeerName 1Becks 2Fat Tire 3Mac n Jacks 4Alaskan Amber 8KirinI run this code:
SELECT JSON_OBJECTAGG(
BeerID: BeerName )
FROM beer;
What are the results? See possible answers