How do I remove all spaces from a field in a Postgres database in an update query?

Question

What would be the proper syntax used to run an update query on a table to remove all spaces from the values in a column?

My table is called users and in

Answer 1

You can include a condition to update only values that need it with the replace.

UPDATE users SET fullname = REPLACE(fullname, ' ', '') WHERE fullname ~* ' ';

Quick and dirty