O'Reilly logo

MongoDB Cookbook by Amol Nayak

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Expiring documents after a fixed interval using the TTL index

One of the nice and interesting features in Mongo is automatically expiring data in the collection after a predetermined amount of time. This is a very useful tool when we desire to purge some data older than a particular timeframe. For a relational database, it is not common for folks to set up a batch job that runs every night to perform this operation.

With the Time To Live (TTL) feature of Mongo, we need not worry about this as the database takes care of it out-of-the-box. Let's see how we can achieve this.

Getting ready

Let's create some data in Mongo that we want to play with using the TTL indexes. We will create a collection called ttlTest for this purpose. We will require a server ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required