On occasion, I need to replace strings in entire database columns.
Here is how to do it in MySQL (reference link1 link2):
UPDATE
table_name
SET
column_name = REPLACE(column_name, 'text to find', 'text to replace with')
WHERE
column_name LIKE '%text to find%';
Here is how to do it in SQL Server (reference link):
update my_table
set path = replace(path, 'oldstring', 'newstring')