What is a data warehouse?

A data warehouse is a place where you collect all the data you have from different sources.

Let’s say you run a blog on WordPress and have Google Analytics installed, and you use Autopilot for your email marketing and Optimizely to run A/B tests on your website. And then you’re keeping customer data in your CRM.

That’s a lot of data from a lot of different sources.

How do you connect the dots?

With a… tadaaa: data warehouse!

A data warehouse copies the data from all these different sources and stores it in one central repository.

The hot shit data warehouses today are:

  • Amazon Redshift
  • Google BigQuery
  • MySQL
  • Postgres

A data warehouse is basically a central repository of data from different sources. The reason why you want this centralized is that it makes working with the data easier: it makes it easier to create reports and analyze the data.

Here’s a helpful video that explains the concept of a data warehouse, and why it’s important for businesses:

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