T-SQL

External Article

Working with Time Spans and Durations in SQL Server

  • Article

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

Blogs

Finding Balance: Things Will Come Up

By

I have a presentation on finding balance in your career that got quite a...

Who Are You Doing It For?

By

But as I've matured over the years, I came to realize that I needed...

Presenting Twice in May 2026

By

I will be presenting my latest session, Documenting Your Work for Worry-Free Vacations, in-person...

Read the latest Blogs

Forums

The day-to-day pressures of a DBA team, and how we can work smarter with automation and AI

By Terry Jago

Comments posted to this topic are about the item The day-to-day pressures of a...

Migrate SSRS Reports to PowerBI Report Server in SQL Server 2025

By Deepam Ghosh

Comments posted to this topic are about the item Migrate SSRS Reports to PowerBI...

Identities and Sequences III

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Identities and Sequences III

Visit the forum

Question of the Day

Identities and Sequences III

When thinking of the Identity property for auto incrementing columns and sequences for the same action, which can be used with the BIGINT data type?

See possible answers