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

A New Word: Lilo

By

lilo– n. a friendship that can lie dormant for years only to pick right...

Learning Database Design and Power BI Performance

By

I spend my days working on and managing SQL Server instances—working days at least,...

Free SQL Training: Dive into Databases This December!

By

Want to learn SQL and get some real practice this December? Check out the...

Read the latest Blogs

Forums

how to calculate an average only if a minimum number of records exist?

By water490

Hi I am working on a rolling average calculation that is not working quite...

Subscribing to a Great New Year

By Louis Davidson (@drsql)

Comments posted to this topic are about the item Subscribing to a Great New...

dont want pkg to abort if someone is in excel source document

By stan

Hi, is there a way when using excel as a flat file source in...

Visit the forum

Question of the Day

The Funny Dynamic SQL

What happens when I run this code:

EXEC sp_executesql N'PRINT 1; GO';

See possible answers