Replacing string data
Sometimes you will need to make sure that the data you are extracting does not contain any whitespace. There are many different approaches you can take to cleanse and prepare your data for these situations. A common technique is to replace any whitespace with an underscore.
In this example, we are going to practice finding and replacing whitespace characters in the title column of the film table using the REPLACE() function.
This exercise is part of the course
Functions for Manipulating Data in PostgreSQL
Exercise instructions
- Replace all whitespace with an underscore.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
SELECT
-- Replace whitespace in the film title with an underscore
___(___, ___, ___) AS title
FROM film;