Recently I came across with an article on DB2 about using Union instead of OR. So I thought of carrying out a research on SQL Server on what scenarios UNION is optimal in and which scenarios OR would be best. I will analyze this with a few scenarios using samples taken from the AdventureWorks database
2011-07-06
6,349 reads
Indexes speed retrieval of rows from database tables or views. Here are the top index-related T-SQL statements that SQL Server DBAs should know.
2011-07-05
8,937 reads
It is recommended that you remove all special characters and HTML formatting. This task can be handled in TSQL code, however in this case I have the opportunity to use .NET and the power of the regular expressions to manage the string. In this tip, I'll build a CLR function which cleans up a string of HTML tags and special characters. I'll use Visual Studio 2010 with C# as the programming language. Check out this tip for my solution.
2011-07-04
3,902 reads
Arshad Ali examines the different types and different layers of security that SQL Server Service Broker provides during communication and while accessing Service Broker objects.
2011-07-04
1,810 reads
FTP Task lets you copy files across distributed, frequently incompatible systems.
2011-07-01
3,288 reads
I have seen several tips on SQL Server Central Management Server and I want to implement the technology for my team. The only thing holding me back is security. Can you explain how security works with Central Management Server? What security access is needed to manage CMS? How about connecting to CMS? How about running a query using CMS? Check out this tip to answer these questions.
2011-06-30
2,912 reads
I want to determine who the local administrators are on each of my SQL Servers. Basically, I'd like a nightly job to run against each of my SQL Servers and produce a list of admins for each server for my review. How can I do this?
2011-06-29
2,595 reads
We all know how important tempdb is and know that tempdb gets recreated every time SQL Server is restarted. Here we dig a little deeper to focus on how space is used inside tempdb.
2011-06-28
4,893 reads
In a typical bar chart, the height of the bars represents the value of the data along the X axis and the Y axis represents the category of the data point. All these values can be classified in logical groups depending upon the logic used for analysis. One general requirement that arises in the case of repeating groups, is to highlight these groups without representing it on the X or Y scale. In this tip we will look at how to address this requirement.
2011-06-27
2,052 reads
When William produced his second article on the free tool 'SQL Scripts Manager', revealing that it worked just as well with PowerShell and Python scripts as it does with TSQL, he thought that would be the end of the series. Oh no; in response to feedback, comes a small add-in called 'Script Generator' that makes a big difference to the speed of developing and producing new scripts.
2011-06-24
4,686 reads
When mirroring was first released for Azure SQL Database, it used Change Data Capture...
By Steve Jones
One of the things I’ve tried hard to do in database development situations if...
By DataOnWheels
The T-SQL Tuesday topic this month comes James Serra. What career risks have you...
We have two "identical" instances of an ASP.NET web service (or so I have...
Comments posted to this topic are about the item OPENQUERY Flexibility
Comments posted to this topic are about the item A Full Shutdown
Which of these are valid OPENQUERY() uses?
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