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External Article

Working with Time Spans and Durations in SQL Server

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

SQLServerCentral Article

Designing Cross Database Queries

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.

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2007-10-19 (first published: )

32,452 reads

External Article

Keep Your Data Secure with the New Advanced Encryption Standard

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

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Backup to Immutable Storage

By Steve Jones - SSC Editor

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Question of the Day

Backup to Immutable Storage

In SQL Server 2025, a backup can be made on Azure Immutable Storage. What changes in how the backup is created?

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