What is the best way to return the "duration" of an event in SQL, given the start and end datetime values? How can we add up these durations to return grand totals? What data types should be used to return this data to our clients? How do we handle overflows, such as when hours go over 23 or minutes total up to over 59? Are there any T-SQL functions or other techniques that are useful in these scenarios?
2007-10-24
4,455 reads
From one of the SQL Server 2005 storage engine lead developers comes this look at the impact of using the NO_LOG and TRUNCATE_ONLY options.
2007-10-24
3,313 reads
Performance tuning is an art or science, depending on who you talk to. SQL Server guru Joe Sack has authored a book on SQL Server 2005 T-SQL and brings us the performance tuning chapter as a preview.
2007-10-23 (first published: 2006-10-25)
14,530 reads
Rodney Landrum demonstrates an ingenious way to monitor blocked SQL Server processes across all your servers, using nothing but SSRS.
2007-10-23
13,574 reads
This installment illustrates how to use PowerShell in conjunction with SMO to display object properties of all SQL Server Objects.
2007-10-23
2,594 reads
Longtime SQL Server author Raj Vasant brings us a technique for delivering databases along with an application. As more and more systems take advantage of SQL Server or Express, this is a technique that can come in very handy.
2007-10-22
5,613 reads
When designing your SQL Server 2005 Analysis Services (SSAS) dimensions and related attributes—appropriately called attribute relationships—you should consider how changes in your dimension data will affect the underlying dimension aggregations and, in turn, processing and query performance.
2007-10-22
951 reads
Connecting to SQL Server 2000 Analysis Services could lie in the memory settings. Get possible problems and solutions to connect to Analysis Services server.
2007-10-22
2,033 reads
As systems get bigger, servers consolidated, and SQL Server back ends more types of applications, the need for cross database queries for reports, updates, and more will continue to grow. Steve Jones looks at a few ways that you can design your linkages and talks about why he prefers one over the other.
2007-10-19 (first published: 2005-03-09)
32,432 reads
The Advanced Encryption Standard (AES) is a National Institute of Standards and Technology specification for the encryption of electronic data. It is expected to become the accepted means of encrypting digital information, including financial, telecommunications, and government data. This article presents an overview of AES and explains the algorithms it uses. Included is a complete C# implementation and examples of encrypting .NET data. After reading this article you will be able to encrypt data using AES, test AES-based software, and use AES encryption in your systems.
2007-10-19
2,427 reads
By Kevin3NF
Don’t Let Trouble Sneak Up on You Most SQL Servers run quietly. Until...
By Steve Jones
I had a conversation with a customer asking this question: how can I tell...
By Chris Yates
There was a time when the Chief Data Officer lived in the shadows of...
Comments posted to this topic are about the item Create an HTML Report on...
Hi I have a SP that occasionally get this error: Cannot resolve the collation...
Hi everyone I am getting an error when I create the index but I...
I have two calls to the GENERATE_SERIES TVF in this code:
SELECT TOP 10 gs.value FROM GENERATE_SERIES(1, 10) AS gs ORDER BY NEWID () OPTION (RECOMPILE); go DECLARE @a int = 10; SELECT TOP (@a) gs.value FROM GENERATE_SERIES(1, @a) AS gs ORDER BY NEWID () OPTION (RECOMPILE);In the actual query plans, what is the estimated number of rows for each batch in SQL Server 2022? See possible answers