mysql substitute field code example
Example 1: mysql replace a character in a string
UPDATE users SET first_name = REPLACE (first_name, 'search', 'replace_with') where id > 0;
Example 2: mysql replace
REPLACE(str, find_string, replace_with)
UPDATE users SET first_name = REPLACE (first_name, 'search', 'replace_with') where id > 0;
REPLACE(str, find_string, replace_with)