When cardinality estimates are incorrect, the parallel threads doing the query work are given uneven amounts of work to do. This problem can lead to a seeming explosion in CXPACKET waits occurring and is commonly called skewed parallelism; Paul Randal explains how to check for it.
2015-09-09
3,469 reads
Denzil Ribeiro looks at how SQL Server 2016's new Merge functionality in INDEX REORGANIZE simplifies Columnstore index maintenance significantly.
2015-09-08
3,007 reads
2015-09-07
2,319 reads
One man’s meat is often another man’s poison. In this editorial Tony Davis looks at why a migrations-based approach to database version control might not always be best practice.
2015-09-07
6,262 reads
How to delete millions of rows with virtually no contention.
2015-09-04 (first published: 2013-03-06)
28,376 reads
In a bid to challenge Intel's dominance of high performance computing environments, IBM have introduced OpenPOWER, a flexible open-source framework based on their POWER processor architecture. Robert Sheldon looks at the potential of this new platform.
2015-09-04
4,562 reads
Dynamic data masking provides a simple way to implement obfuscation of private data. However it's important to understand the limitations, and to keep in mind that it is not true encryption and that the data cannot be protected in all scenarios. Aaron Bertrand explains.
2015-09-03
3,475 reads
With the recent acquisition of Datazen by Microsoft, if you have SQL Server 2008 Enterprise Edition or later with Software Assurance, you can download and use Datazen to create visually appealing dashboards for mobile devices across all the major platforms at no additional cost. In this article, Arshad Ali demonstrates creating data source, data views and then creating dashboards using them with Datazen Publisher.
2015-09-02
5,144 reads
Are you an ISV and/or commercial software developer using SQL Server? Are you considering how to upgrade your application to take advantage of new SQL Server 2014 and would like to know more about how Microsoft can help your migration and sales/marketing efforts? Register using this invitation key 9ABED3
2015-09-01
5,194 reads
Many developers get the misleading perception that ASP.NET SignalR merely helps to build a chat application or provides live updates of news, stock and score tickers. In reality, ASP.NET SignalR has a broader scope. In this article, Dino Esposito covers a few techniques to make selective SignalR updates to pages behind an ASP.NET authentication layer.
2015-09-01
2,801 reads
By Steve Jones
“Don’t aim to have others like you; aim to have them respect you.” –...
If you work with data pipelines, SQL, notebooks, or machine learning models, a Mac...
By ChrisJenkins
Have you been thinking about migrating your reporting to Microsoft Fabric or Snowflake but...
Comments posted to this topic are about the item SQL Art, Part 4: Happy...
hi , a new user wants to be able to add sql agent jobs...
Comments posted to this topic are about the item SQL Server Enum Implementation: A...
In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:
UserID UserPermissions 15 23 37What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount from dbo.UserPermission where UserID = 3;See possible answers