Find and replace particular string in a column

Question

I have a table in the database where it contains some of the user name. When I copy the database files from one machine to other machine, I need to manually update this tabl

Answer 1

Try this statement:

UPDATE your_table SET machine_name = REPLACE(machine_name, machine_name, 'Your New Value')

Answer 2

UPDATE table_that_contains_users
SET field_user = replace( field_user, 'OLDDOMAIN\', 'NEWDOMAIN\')

is that?